# AT Electronics ## Posts - [Hello world!](https://at4electronics.com/hello-world/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Sticks and Stones May Bake My Bones](https://at4electronics.com/sticks-and-stones-may-bake-my-bones/): Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. - [Your Weakest Link: Use It To fashion](https://at4electronics.com/your-weakest-link-use-it-to-fashion/): Phasellus non ultrices orci, quis aliquam elit. In vehicula consequat odio et finibus. Nulla a neque eu mi consequat varius. Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. - [Empty Vessels Bake the Most Noise](https://at4electronics.com/empty-vessels-bake-the-most-noise/): Donec mollis tristique dolor, id ultricies lorem laoreet eu. Sed porttitor leo eget felis aliquam, eu facilisis mauris ornare. Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. - [Sail Your Colours to the Mast](https://at4electronics.com/sail-your-colours-to-the-mast/): Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. - [Why Ignoring fashion Will Cost You Time and Sales](https://at4electronics.com/why-ignoring-fashion-will-cost-you-time-and-sales/): Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. - [What Your Customers Really Think About Your fashion?](https://at4electronics.com/what-your-customers-really-think-about-your-fashion/): Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. - [Warning: These 9 mistakes will destroy your fashion](https://at4electronics.com/warning-these-9-mistakes-will-destroy-your-fashion/): Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. - [Have You Heard? fashion Is Your Best Bet To Grow](https://at4electronics.com/have-you-heard-fashion-is-your-best-bet-to-grow/): Mauris eros lorem, ullamcorper vitae velit quis, iaculis viverra magna. Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. - [Is This fashion Thing Really That Hard](https://at4electronics.com/is-this-fashion-thing-really-that-hard/): Donec at arcu ante. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce eget sodales mi. In venenatis nulla quam, nec egestas dolor vehicula sed. Pellentesque quis dignissim augue. Aliquam cursus at nulla nec elementum. Curabitur vel lorem nec neque porttitor team por.Nullam tincidunt fermentum dui, a faucibus tellus aliquet et. ## Pages - [AxiaChat AI – Bot Test Page](https://at4electronics.com/axiachat-test-4976d0f6/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Can’t find what you need? Request a product and we’ll try to source it for you.](https://at4electronics.com/requested-product-not-found/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [My account](https://at4electronics.com/my-account/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - 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[On Sale Product](https://at4electronics.com/on-sale-product/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Best Selling Products](https://at4electronics.com/best-selling-products/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Top Rated Products](https://at4electronics.com/top-rated-products/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Product Attribute](https://at4electronics.com/product-attribute/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Addon Tag](https://at4electronics.com/addon-tag/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Addon Image](https://at4electronics.com/addon-image/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Addon Video](https://at4electronics.com/addon-video/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Addon Text](https://at4electronics.com/addon-text/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Team Member](https://at4electronics.com/team-member/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Contact Form](https://at4electronics.com/contact-form/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Features](https://at4electronics.com/features/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Testimonial](https://at4electronics.com/testimonial/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Newsletter](https://at4electronics.com/newsletter/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Social Share](https://at4electronics.com/social-share/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Brand](https://at4electronics.com/brand/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Flash Sale](https://at4electronics.com/flash-sale/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - 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[Shop](https://at4electronics.com/shop/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] ## Products - [7490 (Decade and Binary Counter)](https://at4electronics.com/product/7490-decade-and-binary-counter/): 74LS90N is a Decade and Binary Counter – In 14-DIP Package. - [7447 (BCD to 7-Segment Decoder/Driver Common ANODE)](https://at4electronics.com/product/7447-bcd-to-7-segment-common-anode/): 74LS47 is a BCD to 7-Segment (common Anode) Decoder/Driver with Open-Collector Outputs – In 16-DIP Package. For 7 Segment common Anode - [7448 (BCD to 7-Segment Decoder/Driver Common CATHODE)](https://at4electronics.com/product/7448-bcd-to-7-segment-decoder-driver-common-cathode/): 74LS48 is a BCD-to-Seven-Segment Decoder Driver(Internal Pull-up outputs) – In 16-DIP Package. For 7 Segment common cathode - [7473 IC Dual Master-Slave J-K Flip-Flops](https://at4electronics.com/product/7473-ic-dual-master-slave-j-k-flip-flops/): General Description This device contains two independent positive pulse triggered J-K flip-flops with complementary outputs. The J and K data is processed by the flip-flops after a complete clock pulse. While the clock is LOW the slave is isolated from the master. On the positive transition of the clock, the data from the J and … Continue reading - [74138 IC high speed 1-of-8 Decoder/. Demultiplexer.](https://at4electronics.com/product/74138-ic-high-speed-1-of-8-decoder-demultiplexer/) - [74245 IC OCTAL BUS TRANSCEIVER](https://at4electronics.com/product/74245-ic-octal-bus-transceiver/): IC 74245 OCTAL BUS TRANSCEIVER - [74283 IC 4-bit binary adder](https://at4electronics.com/product/74283-ic-4-bit-binary-adder/) - [IC 7493 4-Bit Binary Counter](https://at4electronics.com/product/7493-4-bit-binary-counter/): IC 7493 4-Bit Binary Counter - [7483 IC 4-BIT BINARY FULL ADDER WITH FAST CARRY](https://at4electronics.com/product/7483-ic-4-bit-binary-full-adder-with-fast-carry/) - [IC 7486 Quad 2-Input Exclusive-OR Gate](https://at4electronics.com/product/7486-ic-quad-2-input-exclusive-or-gate/) - [7476 IC Dual Master-Slave J-K Flip-Flops](https://at4electronics.com/product/7476-ic-dual-master-slave-j-k-flip-flops/): PIN LAYOUT FEATURES Two J-K Master-Slave Flip-Flops with Preset and Clear Inputs Outputs Directly Interface to CMOS, NMOS and TTL Large Operating Voltage Range Wide Operating Conditions Not Recommended for New Designs Use 74LS76 PIN DESCRIPTION PIN NUMBER DESCRIPTION 1 Clock 1 Input 2 Preset 1 Input 3 Clear 1 Input 4 J1 Input 5 Vcc … Continue reading - [4026 Decade Counter/Divider](https://at4electronics.com/product/4026-decade-counter-divider/): CD4026 Pin Configuration Pin Number Pin Name Description 1 Clock (CLK) The counting happens when this clock pulse goes high , this pin is normally connected to 555 timer or other uC to produce a pulse 2 Clock Inhibit (INH) Connected to the Ground (low) of the circuit, to enable clock pin 3 Enable Input (DEI) … Continue reading - [D4094 (8-Stage Shift & Store Bus Register)](https://at4electronics.com/product/4094-8stage-shift-and-store-bus-regester/): 8-Stage Shift & Store Bus Register in DIP Package. - [LM35dz Temperature Sensor](https://at4electronics.com/product/lm35dz-temperature-sensor/): Precision Centigrade Temperature Sensors. - [LM393 Dual Differential Comparator](https://at4electronics.com/product/lm393-dual-differential-comparator/): LM393 Dual Differential Comparator - [LM318 (15MHz BW Operational Amplifier)](https://at4electronics.com/product/lm318-15mhz-bw-operational-amplifier/): Features 15 MHz small signal bandwidth Guaranteed 50V/�s slew rate Maximum bias current of 250 nA Operates from supplies of �5V to �20V Internal frequency compensation Input and output overload protected Pin compatible with general purpose op amps Description The LM118 series are precision high speed operational amplifiers designed for applications requiring wide bandwidth and … Continue reading - [LM386N-1 (Low Voltage Audio Power Amplifier)](https://at4electronics.com/product/lm386-op-amp/): The LM386 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200. The inputs are … Continue reading - [ULN2003 (7 Channel NPN Darlington Sink Driver)](https://at4electronics.com/product/uln2003-darlington/): 7 Channel NPN Darlington Sink Driver in DIP Package. - [UA741CN (General Purpose Single Operational Amplifier)](https://at4electronics.com/product/ua741cn-op-amp/): The famous Operational Amplifier 741. - [PIC18F4550 DIP MICROCONTROLLER](https://at4electronics.com/product/pic18f4550/): DIP MICROCONTROLLER - [PIC16F876A-I/SP](https://at4electronics.com/product/pic16f876a-i-sp/): DIP 28pin Enhanced Flash Microcontroller. - [PIC16F877A-I/P](https://at4electronics.com/product/pic16f877a-i-p/): DIP 40pin Enhanced Flash Microcontroller. - [PIC16F628A-I/P](https://at4electronics.com/product/pic16f628a/): DIP package 18Pin Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology. - [NE555N (TIMER)](https://at4electronics.com/product/ne555n-timer/): General Purpose Single Bipolar Timers in 8-DIP Package. - [IC Socket 40 pin - N.20+20](https://at4electronics.com/product/ic-socket-40pin-n2020/): IC Socket 40 pin – N.20+20 - [IC Socket 20 pin - N.10+10](https://at4electronics.com/product/ic-socket-20-pin-n-1010/): IC Socket 20 pin – N.10+10 - [IC Socket 16 pin - N.8+8](https://at4electronics.com/product/ic-socket-16pin-n88/): IC Socket 16 pin – N.8+8 - [IC Socket 14 pin - N.7+7](https://at4electronics.com/product/ic-socket-14pin-n77/): IC Socket 14 pin – N.7+7 - [IC Socket 8 pin - N.4+4](https://at4electronics.com/product/ic-socket-8pin-n44/): DIP IC Socket  8 pin – N.4+4 - [Heat Shrink 10mm/5mm – Black Color (1 Meter)](https://at4electronics.com/product/heat-shrink-10-mm/): Heat Shrink Φ 10mm shrinked to 5mm – Black Color (1 Meter) – 125 deg. , 600V - [Heat Shrink 8mm/4mm – Black Color (1 Meter)](https://at4electronics.com/product/heat-shrink-8mm/): Heat Shrink Φ 8mm shrinked to 4mm – Black Color (1 Meter) – 125 deg. , 600V - [Heat Shrink Φ 3mm/1.5mm - Black Color (1 Meter)](https://at4electronics.com/product/heat-shrink-3mm-1-5mm/): Heat Shrink Φ 3mm/1.5mm – Black Color (1 Meter) – 125 deg. , 600V - [Heat Shrink Φ 2mm/1mm - Black Color (1 Meter)](https://at4electronics.com/product/heat-shrink-2-mm-1mm/): Heat Shrink Φ 2mm/1mm – Black Color (1 Meter) – 125 deg. , 600V - [Fuse Holder 5mm X 20mm PCB Mount Blx-a](https://at4electronics.com/product/fuse-holder-5mm-x-20mm-pcb-mount-blx-a/): Fuse Holder 5mm X 20mm PCB Mount Blx-a - [Glass Fuse 10A-250V (Size T5x20mm)](https://at4electronics.com/product/glass-fuse-10a-20mm/): Glass Fuse 10A-250V (Size T5x20mm). - [Glass Fuse 4A-250V (Size T5x20mm)](https://at4electronics.com/product/glass-fuse-4a-20mm/): Glass Fuse 4A-250V (Size T5x20mm). - [Glass Fuse 2A-250V (Size T5x20mm)](https://at4electronics.com/product/glass-fuse-2a-20mm/): Glass Fuse 2A-250V (Size T5x20mm). - [Glass Fuse 1A-250V (Size T5x20mm)](https://at4electronics.com/product/glass-fuse-1a-20mm/): Glass Fuse 1A-250V (Size T5x20mm). - [Glass Fuse 0.50A-250V (Size T5x20mm)](https://at4electronics.com/product/glass-fuse-0-5a-20mm/): Glass Fuse 0.50A-250V (Size T5x20mm). - [Glass Fuse 0.25A-250V (Size T5x20mm)](https://at4electronics.com/product/glass-fuse-0-25a-20mm/): Glass Fuse 0.25A-250V (Size T5x20mm). - [Glass fuse 100 mA 20mm](https://at4electronics.com/product/glass-fuse-100-ma-20mm/): Glass fuse 100 mA 20mm - [1N4148 "HIGH SPEED GENERAL PURPOSE DIODE"](https://at4electronics.com/product/1n4148-high-speed-general-purpose-diode/): FEATURES:  Hermetically sealed leaded glass SOD27 (DO-35) package High switching speed: max. 4 ns  General application Continuous reverse voltage: max. 75 V Repetitive peak reverse voltage: max. 75 V Repetitive peak forward current: max. 450 mA. - [1N4007 "1A Silicon Diode General Purpose"](https://at4electronics.com/product/1n4007-1a-silicon-diode-general-purpose/): Silicon Diode General Purpose 1N4007 with Max. peak reverse voltage 1000V & Average current 1A. - [Crystal 20.000 MHz](https://at4electronics.com/product/crystal-20-000-mhz/): Frequency 20.000 MHz and its dimensions is 11.1×4.7×2.5 (in mm). - [Crystal 16.000 MHZ](https://at4electronics.com/product/crystal-16-000-mhz/): Frequency 16.000 MHz and its dimensions is 11.1×4.7×2.5 (in mm). - [Crystal 8.000 MHz](https://at4electronics.com/product/crystal-8-000-mhz/): Frequency 8.000 MHz and its dimensions is 11.1×4.7×2.5 (in mm). - [Crystal 4 MHZ](https://at4electronics.com/product/crystal-4-mhz/): Frequency 4.000 MHz and its dimensions is 11.1×4.7×2.5 (in mm). - [2pin PCB mount screw 5mm (Roseta) Terminal block](https://at4electronics.com/product/2pin-pcb-mount-screw-5mm-roseta/): PCB Mount Screw Terminal Model: KF126-2P pitch: 5.0MM Block KF126-5.0-2P Rated: 8A / 250V - [Electrolytic capacitor 2200 uF - 50V](https://at4electronics.com/product/electrolytic-capacitor-2200-uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic capacitor 1000 uF - 50V](https://at4electronics.com/product/electrolytic-capacitor-1000-uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic capacitor 470 uF - 50V](https://at4electronics.com/product/electrolytic-capacitor-470-uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic capacitor 220 uF - 50V](https://at4electronics.com/product/electrolytic-capacitor-220-uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic capacitor 100 uF - 50V](https://at4electronics.com/product/electrolytic-capacitor-100-uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic capacitor 47uF 50V](https://at4electronics.com/product/electrolytic-capacitor-47uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic capacitor 22 uF - 50V](https://at4electronics.com/product/electrolytic-capacitor-22-uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic capacitor 10 uF - 50V](https://at4electronics.com/product/electrolytic-capacitor-10-uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic capacitor 10 uF - 25V](https://at4electronics.com/product/electrolytic-capacitor-10-uf-25v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic Capacitor4.7uF 50V](https://at4electronics.com/product/electrolytic-capacitor4-7uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Electrolytic Capacitor 1 uF - 50V](https://at4electronics.com/product/electrolytic-capacitor-1-uf-50v/): Radial Electrolytic type capacitor Radial Electrolytic type capacitor , Low Leakage Current , Wide Operating Temperature Range , Long Life. - [Ceramic Capacitor 39nF](https://at4electronics.com/product/ceramic-capacitor-39nf/): Ceramic Capacitor 39nF - [Ceramic Capacitor 5PF](https://at4electronics.com/product/ceramic-capacitor-5pf/): 5PF Ceramic Capacitor - [Ceramic Capacitor 33pF 50v (Code 33)](https://at4electronics.com/product/ceramic-capacitor-33pf-50v-code-33/): Stable, Low Cost Ceramic Capacitor , Accuracy: 20% , Wide Operating Temperature Range – +10oC to +85oC , Dielectric Withstand – 2.5x Rated Voltage , Body Diameter – 4mm , Pin Spacing – 2.5mm - [Ceramic Capacitor 27pF 50v (Code 27)](https://at4electronics.com/product/ceramic-capacitor-27pf-50v-code-27/): Stable, Low Cost Ceramic Capacitor , Accuracy: 20% , Wide Operating Temperature Range – +10oC to +85oC , Dielectric Withstand – 2.5x Rated Voltage , Body Diameter – 4mm , Pin Spacing – 2.5mm - [Ceramic Capacitor 22pF 50v (Code 22)](https://at4electronics.com/product/ceramic-capacitor-22pf-50v-code-22/): Stable, Low Cost Ceramic Capacitor , Accuracy: 20% , Wide Operating Temperature Range – +10oC to +85oC , Dielectric Withstand – 2.5x Rated Voltage , Body Diameter – 4mm , Pin Spacing – 2.5mm - [Ceramic capacitor 22 nF - 50V (Code 223)](https://at4electronics.com/product/ceramic-capacitor-22-nf-50v-code-223/): Capacitor 22nF – 50V (223) - [Ceramic Capacitor 220 nF - 50V (Code 224)](https://at4electronics.com/product/ceramic-capacitor-220-nf-50v-code-224/): Capacitor 220nF – 100V (224) - [Ceramic Capacitor 150pF 50V](https://at4electronics.com/product/ceramic-capacitor-150pf-50v/): Stable, Low Cost Ceramic Capacitor , Accuracy: ±20% , Wide Operating Temperature Range – +10oC to +85oC , Dielectric Withstand – 2.5x Rated Voltage , Body Diameter – 4mm , Pin Spacing – 2.5mm - [Ceramic capacitor 0.1 uF (100nF 25V - code 104)](https://at4electronics.com/product/ceramic-capacitor-0-1-uf-100nf-25v-code-104/): Stable, Low Cost Ceramic Capacitor , Accuracy: ±20% , Wide Operating Temperature Range – +10oC to +85oC , Dielectric Withstand – 2.5x Rated Voltage , Body Diameter – 4mm , Pin Spacing – 2.5mm - [Ceramic Capacitor 0.01uF 25v (10nf 25v - code 103)](https://at4electronics.com/product/ceramic-capacitor-0-01uf-25v-10nf-25v-code-103/): Stable, Low Cost Ceramic Capacitor , Accuracy: ±20% , Wide Operating Temperature Range – +10oC to +85oC , Dielectric Withstand – 2.5x Rated Voltage , Body Diameter – 4mm , Pin Spacing – 2.5mm - [Ceramic Capacitor 0.001uF 25v (1nf 50v - code 102)](https://at4electronics.com/product/ceramic-capacitor-0-001uf-25v-1nf-50v-code-102/): Stable, Low Cost Ceramic Capacitor , Accuracy: ±20% , Wide Operating Temperature Range – +10oC to +85oC , Dielectric Withstand – 2.5x Rated Voltage , Body Diameter – 4mm , Pin Spacing – 2.5mm - [Buzzer Alarm 3-24V 95DB](https://at4electronics.com/product/buzzer-alarm-3-24v-95db/): Specifications: Color: White Quantity: 1 pc Alarm Diameter: 29mm Alarm Height: 15mm 2 Mounting Holes distance: 40mm 2 Wires length: 105mm Rated Voltage: 12V Operating Voltage: 3-24V Rated Current(MAX): 20mA Min Sound Output at 10 cm: 95 DB Resonant Frequency: 3100±500 Operating Temperature: -20～+80℃ Intermittent Sound - [Small buzzer 5-6v](https://at4electronics.com/product/small-buzzer-5-6v/): • Rated Frequency: 4,100Hz • Operating Voltage: 6 Vdc • Current Consumption: 7mA @ 6Vdc • Sound Pressure Level(30cm): 70dB @ 6Vdc • Dimensions: 13mm Diameter, 7mm High, Pin Spacing – 7mm. • Label Color: Blue - [Bridge Rectifier 1 Ampere (IC Shape) DB107](https://at4electronics.com/product/bridge-rectfire-1-amp/): 1 Amp Bridge Rectifier (DB107) - [PCB 7*9 cm2 (Each Point)](https://at4electronics.com/product/pcb-79/): Holed PCB to fit any electronic component and easy for use to any circuit with good quality. Enlarge the photo to see its holes shape. - [Bread board 830 Tie](https://at4electronics.com/product/bread-board-830-tie/): This model can be contacted to the same model to get more big space for work. Bread Board Specifications: 1 Terminal Strip Tie Point 630 2 Distribution Strips Tie Points 200. ABS Plastic material Pitch: 2.54mm Rated: 300V/3-5A Wire Range: 20-29AWG   - [Bread Board 400-Tie Point "BB-801"](https://at4electronics.com/product/bread-board-400-tie/): This model can be contacted to the same model to get more big space for work. Bread Board Specifications: 1 Terminal Strip Tie Point 400 2 Distribution Strips Tie Points 100. ABS Plastic material Pitch: 2.54mm Rated: 300V/3-5A Wire Range: 20-29AWG - [Mini Breadboard 170 pin](https://at4electronics.com/product/mini-breadboard-170-pin/): 170 point Solderless mini Breadboard perfect for proto shields Self Adhesive Back Smooth Chamfered Edges two 85 point section with central gap  170 tie points total  Size 4.5*3.5*0.85mm Fully re-useable From ABS Matrial Nickel plated contacts Rated 300mA - [AA Battery Holder 4-slot](https://at4electronics.com/product/aa-battery-holder-4-cell-on-off-switch/): 4-slot AA battery holder securely holds three AA batteries, providing 6V output. Ideal for DIY projects, robotics, and portable power needs. - [AA Battery Holder 3-slot](https://at4electronics.com/product/aa-battery-holder-3-cell-on-off-switch/): 3-slot AA battery holder securely holds three AA batteries, providing 4.5V output. Ideal for DIY projects, robotics, and portable power needs. - [AA Battery Holder 2 Cells](https://at4electronics.com/product/aa-battery-holder-2-cells/): This is a standard AA Battery Holder that holds two batteries, for projects that use AA Batteries as a power source. It features mounting holes along the centre of the base, allowing you to install it onto the top or side of a project, while keeping the batteries safe from external harm and neatly tucked away inside … Continue reading - [Battery 9V](https://at4electronics.com/product/battery-9-v/): General purpose 9V Battery - [9v battery clip](https://at4electronics.com/product/9v-battery-clip/): Standard 9V Battery Clip with Flying Leads. - [Alligator Clip Pair](https://at4electronics.com/product/aligator-clip-pair/): Alligator clip(red and black) - [Male 4mm Banana Electrical Jack Red](https://at4electronics.com/product/banana-jack/): Banana Electrical Jack Red - [Small Speaker, 45 Ohm , 0.2W - 50mm](https://at4electronics.com/product/small-speaker-45-ohm-0-2w-50mm/): This is a small speaker (57 mm diameter) speaker, 8 Ohm,2 Watt. The magnet is quite strong. - [Microphone element](https://at4electronics.com/product/microphone-element/): General purpose standard Microphone 2.2 kOhm 9.7 x 4.82mm Replacment Microphone Element - [Micro USB TO USB Data Cable 1M D3V 2.4A](https://at4electronics.com/product/micro-usb-to-usb-data-cable-1m/): Features: The micro USB cable supports a maximum 2.4A fast charging. The USB cable is compatible with almost all devices with Micro ports. It can also be used for hard drives, hand-held game consoles, e-readers, Stylus, and players. The sturdy construction has connectors with molded strain relief for frequent unplugging and durability. Efficient, small, and … Continue reading - [USB Cable For Arduino Uno 30cm](https://at4electronics.com/product/usb-cable-for-arduino-uno-30cmmini/): Type:USB Cable, Metal Case Usb Cable, Elbow Data Cable Type:USB Cable, Metal Case Usb Cable, Elbow Data Cable Use it to connect Ardunio Uno, Ardunio Mega 2560, Ardunio 101 or any board with the USB female A port of your computer. USB Data Sync Cable: for Ardunio UNO / Ardunio Mega 2560 Rev 3 R3 Length … Continue reading - [USB Data Sync Cable for Arduino UNO 1.5m](https://at4electronics.com/product/usb-cable-uno-1-5m/): USB Cable to connect an Arduino microcontroller to a PC or Mac - [USB to Mini USB Cable 30cm For Arduino NANO](https://at4electronics.com/product/mini-usb-cable-nano-30cm/): USB to Mini USB cable designed for the Arduino Nano—a practical 30cm cable that keeps your bench setup clean and your wiring paths under control. With its compact length, this 30cm usb cable is ideal for tight workspaces, quick prototyping, and consistent connections between your computer and board. It’s an efficient mini usb usb data … Continue reading - [USB Cable to Mini 1.5m for Arduino NANO](https://at4electronics.com/product/usb-cable-nano-1-5m/): High quality USB cable with following specifications: USB1 & USB2 compatible Shielded Cable High Speed Data Transmission Type CM-70 degree C Length 1.5 meters - [Camera Module (OV7670)](https://at4electronics.com/product/camera-module-ov7670/): The OV7670 is a camera module that you can embed and use in your own applications easily. - [Arduino Uno Rev3 with CH340 Uploader](https://at4electronics.com/product/arduino-uno-ch340/): Key Features of UNO R3: ATmega328 processor running at 16MHz CH340 Serial to USB converter 32KB Flash memory 14 Digital I/O 6 PWM shared with the digital I/O 6 Analog inputs that can also be used as digital I/O for a total of up to 20 digital I/O 1 Hardware serial port 5V Operation The … Continue reading - [Arduino Board - Arduino UNO Rev3 - China Clone](https://at4electronics.com/product/arduino-uno/): The Arduino UNO Rev.3 board is a microcontroller board based on the ATmega328 . It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to … Continue reading - [Arduino Leonardo](https://at4electronics.com/product/arduino-leonardo/): The Arduino Leonardo is a microcontroller board based on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to … Continue reading - [Arduino Board - Arduino Nano - China Clone](https://at4electronics.com/product/arduino-nano/): The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x) or ATmega168 (Arduino Nano 2.x). It has more or less the same functionality of the Arduino Duemilanove, but in a different package. It lacks only a DC power jack, and works with a Mini-B USB cable instead of … Continue reading - [Arduino Board – Arduino Mega2560 Rev3 – China Clone](https://at4electronics.com/product/arduino-board-arduino-mega2560-rev3-china-clone/): The Ardunio Mega 2560 is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains … Continue reading - [7-Segment 4 Digit Comm.Anode 0.56](https://at4electronics.com/product/7-segment-4-digit-comm-anode-0-56/): Build clean, readable instrumentation with this 7-segment display—a compact 4 digit module featuring a common anode configuration for communication-style and measurement readouts. With a 0.56 inch viewing size, it’s well-suited for modern electronics projects where space and legibility matter. Designed as a communication display electronic component, it helps engineers, hobbyists, hardware makers, students, and professionals … Continue reading - [7 segment 0.5 com cathode](https://at4electronics.com/product/7-segment-0-5-com-cathode/): Segment 0.5″ Com. Anode (19 x 13 mm) - [7 segment 0.5 com anode](https://at4electronics.com/product/7-segment-0-5-com-anode/): Segment 0.5″ Com. Anode (19 x 13 mm) - [5K Ohm Potentiometer](https://at4electronics.com/product/5k-ohm-potentiometer/): The 5k ohm potentiometer is a reliable potentiometer designed for analog control and precise adjustment in low- to mid-level circuit applications. As a variable resistor, the 5K ohm resistance range lets you fine-tune voltage levels, set thresholds, and control operating points with repeatable results. Ideal for an electronics component in bench experiments, student labs, and … Continue reading - [1K Ohm Potentiometer](https://at4electronics.com/product/1k-ohm-pot/): The 1K ohm potentiometer is a reliable potentiometer / variable resistor designed for precise, adjustable control in compact electronics systems. With a resistance value of 1K ohm, it’s commonly used to set levels, generate control voltages, and fine-tune analog behavior. Built for analog control work, the 1k ohm pot lets hobbyists, engineers, and technicians dial … Continue reading - [Rotary Pot 100Kohm](https://at4electronics.com/product/potentiometer-100k-ohm-small/): The rotary potentiometer is a compact, reliable small rotary pot for adjusting voltage, signal levels, and control parameters in electronic circuits. With a nominal resistance of 100k ohm (100Kohm/100kohm), it’s a practical choice for prototyping and repair. Built around the core function of a variable resistor, this 100kohm potentiometer lets you set a stable, repeatable … Continue reading - [Rotary Pot 10Kohm](https://at4electronics.com/product/potentiometer-10k-ohm-small/): The Rotary Pot 10Kohm is a rotary potentiometer designed for precise, manual adjustment in electronic circuits. With a 10k ohm / 10kohm resistance value, it works as a reliable potentiometer and adjustable resistor—ideal when you need to fine-tune a signal, set a threshold, or calibrate a control. As a straightforward electronics component from AT4 Electronics, … Continue reading - [Rotary Pot 1Kohm](https://at4electronics.com/product/potentiometer-1k-ohm-small/): The Rotary Pot 1Kohm is a practical rotary potentiometer designed for precise manual adjustment in electronics projects and test setups. With a resistance value of 1Kohm (1k ohm), it provides a stable, predictable variable output for control and calibration tasks. Engineered for hands-on use, this 1k ohm potentiometer functions as an adjustable resistor with smooth … Continue reading - [Cds Photoresistor (LDR) 10mm](https://at4electronics.com/product/ldr-10mm/): Cds Photoresistor (Light Dependence Resistor) 12mm Medium Size - [LDR 7mm](https://at4electronics.com/product/ldr-7mm/): LDR 7mm is a compact electronics component designed for light-sensing circuits and rapid prototyping. As a light dependent resistor ( LDR ) variant from AT4 Electronics, the 7mm form factor helps you integrate optical control into tight layouts. Use the LDR 7mm to build dependable brightness detection, automatic switching, ambient light indicators, and sensor-driven automation. … Continue reading - [Cds Photoresistor (LDR) 3mm](https://at4electronics.com/product/ldr-3mm/): Cds Photoresistor (Light Dependence Resistor) 3mm Small Size - [Knob for Rotary Potentiometers](https://at4electronics.com/product/knob-for-pot/): Give a nice looking to your potentiometer in your PCB by plug this nice knops. - [Diac diode DB3](https://at4electronics.com/product/diac-diode-db3/): Bi-Directional Diac “DB3” - [1N5817 "Schottky Rectifier Diode General Purpose"](https://at4electronics.com/product/1n5817-schottky-rectifier-diode-general-purpose/): Features: The 1N5817 axial leaded Schottky rectifier has been optimized for very low forward voltage drop, with moderate leakage. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. Low profile, axial leaded outline. High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance. Very low forward voltage … Continue reading - [zener diode 5.1v](https://at4electronics.com/product/zener-5-1/): Voltage regulator diodes (Zener Diodes) - [zener diode3.3 v](https://at4electronics.com/product/zener-3-3/): Voltage regulator diodes (Zener Diodes) - [Raindrop Sensor Module](https://at4electronics.com/product/rain-drops-module/): The Raindrop Sensor Module is a practical, easy-to-integrate sensor module for detecting rain and raindrops—ideal for weather sensing and outdoor electronics projects. Built for makers, hobbyists, engineers, and electronics students, it helps you turn real-world moisture signals into usable input for your system. With its rain detection module functionality, the raindrop sensor and rain drop … Continue reading - [Pin header female 2.54mm 1*40 stright](https://at4electronics.com/product/pin-header-female-2-54mm-140-stright/): Pin header female 2.54mm 1*40 stright - [Pin header male 2.54mm 1*40 stright](https://at4electronics.com/product/pin-header-male-2-54mm-140-stright/): Pin header male 2.54mm 1*40 stright - [ATMEGA32A](https://at4electronics.com/product/atmega32/): Features • High-performance, Low-power Atmel®AVR® 8-bit Microcontroller • Advanced RISC Architecture – 131 Powerful Instructions – Most Single-clock Cycle Execution – 32 × 8 General Purpose Working Registers – Fully Static Operation – Up to 16MIPS Throughput at 16MHz – On-chip 2-cycle Multiplier • High Endurance Non-volatile Memory segments – 32Kbytes of In-System Self-programmable Flash … Continue reading - [ATMEGA16A-PU (8-bit AVR with 16K Bytes of ISP Flash)](https://at4electronics.com/product/atmega-16/): Features • High-performance, Low-power AVR® 8-bit Microcontroller • Advanced RISC Architecture – 131 Powerful Instructions – Most Single-clock Cycle Execution – 32 x 8 General Purpose Working Registers – Fully Static Operation – Up to 16 MIPS Throughput at 16 MHz – On-chip 2-cycle Multiplier • High Endurance Non-volatile Memory segments – 16K Bytes of … Continue reading - [ATmega8-16PU (Atmel 8 Bit Micro-controller)](https://at4electronics.com/product/atmega8-16pu-atmel-8-bit-micro-controller/): This is the ATmega8-16PU, the most popular 28-Pin PDIP package of the ATmega8 micro-controller family. ATMEGA8 is low-power Atmel 8-bit AVR microcontroller combines 8KB of programmable flash memory, 1KB of SRAM, 512B EEPROM, and a 6 or 8 channel 10-bit A/D converter. The device supports throughput of 16 MIPS at 16 MHz and operates between … Continue reading - [Analog Piezoelectric Ceramic Vibration Module](https://at4electronics.com/product/analog-piezoelectric-ceramic-vibration-module/): When the piezoelectric ceramic shocking will generate an electrical signal, controller analog port can be perceived slight vibration signals, also can be realized with vibration interactions related works, such as electronic drums. The output voltage is proportional to the strength of shock or vibration.  So you can measure and characterize the vibration. Features: Working Voltage: … Continue reading - [Arduino 20cm Length Wire With Headers Female From Both End (jumper)](https://at4electronics.com/product/phcr-female-to-female-20cm/): • Suitable for Male Headers • Current Rating up to 1A - [Arduino 20cm Wire With Headers One Side Male &One Female (jumper)](https://at4electronics.com/product/phcr-female-to-male-20cm/): • Suitable for Female & Male Headers (Such as in Ardunio Board) • Current Rating up to 1A • Gold plated end terminals (High conductivity for low signals data) • We have different colors (write a comment with your wire colors) - [Arduino 20Cm Length Wire With Headers Male From Both Ends (jumper)](https://at4electronics.com/product/phcr-male-to-male-20cm/): Ardunio Jumper Wire Features • Suitable for Female Headers (Such as in Ardunio Board) • Current Rating up to 1A • Gold plated end terminals (High conductivity for low signals data) • We have different colors (write a comment with your wire colors) - [Arduino 30cm Length Wire With Headers Female From Both Ends (jumper)](https://at4electronics.com/product/phcr-female-to-female-30cm/): • Suitable for Male Headers • Current Rating up to 1A - [Arduino 30cm Wire With Headers One Side Male &One Female (jumper)](https://at4electronics.com/product/phcr-female-to-male-30cm/): • Suitable for Female & Male Headers (Such as in Ardunio Board) • Current Rating up to 1A • Gold plated end terminals (High conductivity for low signals data) • We have different colors (write a comment with your wire colors) - [Arduino 30Cm Length Wire With Headers Male From Both Ends (jumper)](https://at4electronics.com/product/phcr-male-to-male-30cm/): Ardunio Jumper Wire Features • Suitable for Female Headers (Such as in Ardunio Board) • Current Rating up to 1A • Gold plated end terminals (High conductivity for low signals data) • We have different colors (write a comment with your wire colors) - [Line Tracking Sensor Module 5 Channel](https://at4electronics.com/product/line-follower-sensor/): TCRT5000 5 Channel Tracking Sensor Tracking Module Infrared Sensor is based on the TRCT5000 infrared reflection sensor, it is often used to make tracking smart cars. The infrared emitting diode of the TRCT5000 sensor continuously emits infrared rays. When the emitted infrared rays are reflected by the object, they are received by the infrared receiver … Continue reading - [Standard Matrix Key Pad 4x4 Flat "Numerical Shape" - Grade B](https://at4electronics.com/product/keypad-44/): Standard Matrix Key Pad 4×4 Flat switches and can be stick it on any box – Numerical Shape. Dimensions: Size: 78 x 69 mm Cable Length: 85 mm - [Ultrasonic Sensor & Distance Measurement Module HC-SR04](https://at4electronics.com/product/ultrasonic-sensor/): General Description: Distance measurement sensor is a low cost full functionality solution for distance measurement applications. The module is based on the measurement of time flight of ultrasonic pulse, which is reflected by an object. The distance to be measured mainly depends on the speed of ultrasonic waves in space or air –which is a … Continue reading - [MOC 3021 Optoisolator Triac Driver](https://at4electronics.com/product/moc-3021-optoisolator-triac-driver/): Pin Number Pin Name Description 1 Anode (A) Anode pin of the IR LED. Connected to logic input 2 Cathode (C) Cathode pin of the IR LED 3 NC No Connection – Cannot be used 4 Triac Main Terminal 1 One end of the Triac which is present inside the IC 5 NC No Connection … Continue reading - [BT136-600 "Triac logic level"](https://at4electronics.com/product/bt136-600-triac-logic-level/): Triacs logic level 4 Amp. 600 Volts - [Negative Voltage Regulator 9V-7909](https://at4electronics.com/product/l7909/): 7909 is a series of 79XX negative voltage regulators (as known as L79xx, LM79xx, MC79xx…), the xx is replaced with two digits, indicating the output voltage (for example, the 7905 has a negative 5-volts output, while the 7912 produces negative 12-volts).   Applications Circuits requiring steady -9v supply Protection for devices having specific voltage sensitivity DIY projects requiring specific … Continue reading - [L7905CV Negative Voltage Regulator 5V](https://at4electronics.com/product/l7905cv/): 5V 1A Negative Regulator in TO220 Package - [L7912CV Negative Voltage Regulator 12V](https://at4electronics.com/product/l7912cv/): .12V 1A Negative Regulator in TO220 Package - [L7809](https://at4electronics.com/product/l7809/): 7809 is a series of 78XX voltage regulators (as known as L78xx, LM78xx, MC78xx…), the xx is replaced with two digits, indicating the output voltage (for example, the 7805 has a 5-volt output, while the 7812 produces 12 volts).   Applications Circuits requiring steady 9v supply Protection for devices having specific voltage sensitivity DIY projects requiring specific voltage from … Continue reading - [L7805CV" +5V Regulator"](https://at4electronics.com/product/l7805cv/): 5V 1A Positive Regulator in TO220 Package COPY CHINA - [L7812CV Positive Voltage Regulator 12V](https://at4electronics.com/product/l7812cv/): 12V 1A Positive Regulator in TO220 Package - [LM317T" 3-Terminal 1.5A Adjustable Positive Regulator"](https://at4electronics.com/product/lm317cv/): .3-Terminal 1.5A Adjustable Positive Regulator - [TLP250 Mosfet Driver](https://at4electronics.com/product/tlp250-mosfet-driver/): Pin configuration isolated mosfet driver TLP250 Pin Configuration Description Details are according to the datasheet. PINS Details 1. NC .No Connection – Not used 2. Anode Anode terminal of LED diode 3. Cathode The cathode terminal of the LED 4. NC .No Connection – Not used 5. GND Connect with the Ground of the power supply … Continue reading - [IRF3205 – 55V N-Channel HEXFET Power MOSFET](https://at4electronics.com/product/irf3205-55v-n-channel-hexfet-power-mosfet/): SPECIFICATION VALUE Family IRF3205 Category Power MOSFET Configuration Single Maximum Power Dissipation 200000mW Number of Elements per Chip 1 Channel Mode Enhancement Channel Type N Maximum Continuous Drain Current 110A Maximum Drain Source Resistance 0.008Ohm@10V Maximum Drain Source Voltage 55V Maximum Gate Source Voltage ±20V Typical Fall Time 65ns Typical Gate Charge @ Vgs 146nC(Max)@10V … Continue reading - [IRF620 N-Channel MOSFET (5A,200V,0.8 Ohm)](https://at4electronics.com/product/irf620-n-channel-mosfet-5a200v0-8-ohm/): Features: – Single Pulse Avalanche Energy Rated – SOA is Power Dissipation Limited – Nanosecond Switching Speeds – Linear Transfer Characteristics – High Input Impedance Drain to Source Voltage: 200V max. Drain to Gate Voltage (RGS = 20kΩ): 200V max. Continuous Drain Current: 5.0A max. Pulsed Drain Current: 20A max. Gate to Source Voltage: +/-20V … Continue reading - [IRFZ44 "N-Channel MOSFET](https://at4electronics.com/product/irfz44-n-channel-mosfet/): General Purpose N-Channel Power MOSFET Transistor 55V , 17.5 mohm , 49A in TO-220 Package. - [IRF540 "N-Channel MOSFET](https://at4electronics.com/product/irf540-n-channel-mosfet/): General Purpose N-Channel MOSFET Transistor 100V , 0.055ohm , 30A in TO-220 Package. - [IRF9540 "P-Channel MOSFET](https://at4electronics.com/product/irf9540-p-channel-mosfet/): Features Drain-Source Volt (Vds): -100V Gate-Source Volt (Vgs): 20V Drain Current (Id): -23A Power Dissipation (Ptot): 140W Type: P-Channel - [BC558 Bi-Polar PNP Amplifier Transistor](https://at4electronics.com/product/bc558-bi-polar-pnp-amplifier-transistor/): Features Bi-Polar PNP Amplifier Transistor DC Current Gain (hFE) is 800 maximum Continuous Collector current (IC) is 100mA Peak Collector current (Ic) is 200mA Emitter Base Voltage (VBE) is 5V Base Current(IB) is 200mA peak - [BC548 NPN bipolar junction transistor](https://at4electronics.com/product/bc548-npn-bipolar-junction-transistor/): BC548 Transistor Features Bi-Polar NPN Transistor DC Current Gain (hFE) is 800 maximum Continuous Collector current (IC) is 500mA Emitter Base Voltage (VBE) is 5V Base Current(IB) is 5mA maximum - [BC212 PNP 50V 0.3A](https://at4electronics.com/product/bc212-pnp-50v-0-3a/): Characteristics of the BC212 bipolar transistor Type – p-n-p Collector-Emitter Voltage: -50 V Collector-Base Voltage: -60 V Emitter-Base Voltage: -5 V Collector Current: -0.2 A Collector Dissipation – 0.3 W DC Current Gain (hfe) – 60 to 400 Transition Frequency – 200 MHz Noise Figure – 10 dB Operating and Storage Junction Temperature Range -65 to +150 °C - [BC337 (NPN)](https://at4electronics.com/product/bc337-npn/): NPN Amplier Transistors in TO-92 Package - [BC557 (PNP)](https://at4electronics.com/product/bc557-pnp/): PNP-Amplifier Transistors in TO-92 Package. - [BC547 (NPN)](https://at4electronics.com/product/bc547-npn/): NPN-Amplifier Transistors in TO-92 Package. - [2N5401 High Current PNP Bipolar Transistor](https://at4electronics.com/product/2n5401-high-current-pnp-bipolar-transistor/): Characteristics of the 2N5401 bipolar transistor Type – p-n-p Collector-Emitter Voltage: -150 V Collector-Base Voltage: -160 V Emitter-Base Voltage: -5 V Collector Current: -0.6 A Collector Dissipation – 0.625 W DC Current Gain (hfe) – 60 to 240 Transition Frequency – 100 MHz Operating and Storage Junction Temperature Range -55 to +150 °C - [2N5551 Amplifier NPN Transistor](https://at4electronics.com/product/2n5551-amplifier-npn-transistor/): Features: Amplifier NPN Transistor High DC Current Gain (hFE), typically 80 when IC=10mA Continuous Collector current (IC) is 600mA Collector-Emitter voltage (VCE) is 160 V Collector-Base voltage (VCB) is 180V Emitter Base Voltage (VBE) is 6V Transition Frequency is 100MHz - [2N3906 (PNP)](https://at4electronics.com/product/2n3906-pnp/): .General Purpose Transistor PNP TO-92 package - [2N3904 (NPN)](https://at4electronics.com/product/2n3904-npn/): The 2N3904 is a classic NPN transistor semiconductor used in countless designs where reliable gain and dependable switching are required. As a widely used electronic component, it’s a go-to choice for electronics enthusiasts, hobbyists, students, engineers, and professionals building practical, test-friendly circuits. In amplifier applications, the 2N3904 NPN offers stable performance for signal amplification, making … Continue reading - [2N2222 (NPN)](https://at4electronics.com/product/2n2222-npn/): NPN switching transistors in plastic package. - [Tip132 – 8A 100V NPN Darlington Bipolar Power Transistor](https://at4electronics.com/product/tip132-8a-100v-npn/): ATTRIBUTE VALUE Transistor Type NPN Maximum Continuous Collector Current 8 A Maximum Collector Emitter Voltage 100 V Maximum Emitter Base Voltage 5 V Package Type TO-220 Mounting Type Through Hole Pin Count 3 Transistor Configuration Single Number of Elements per Chip 1 Minimum DC Current Gain 500 Maximum Collector Base Voltage 100 V Maximum Collector … Continue reading - [TIP127 PNP Darlington Power Transistor](https://at4electronics.com/product/tip-127/): The TIP127 is a PNP transistor built as a Darlington power transistor, designed for reliable operation in power electronics applications. Its Darlington pair configuration provides high current gain, making it a practical choice when you need strong drive capability from a smaller control signal. As a power transistor and a versatile electronics component, the TIP127 … Continue reading - [TIP122 NPN Darlington Power Transistor](https://at4electronics.com/product/tip-122/): The TIP122 is an NPN Darlington transistor built around a Darlington pair design, making it a dependable power transistor choice for power electronics applications. As a robust semiconductor component, it helps engineers and technicians drive loads with confident control—while remaining a popular option for electronics education and practical builds. Designed for electronics work across real-world … Continue reading - [Transformer 220Vac to 12 - 0 - 12Vac 1amp](https://at4electronics.com/product/transformer-220vac-to-12vac-1amp/): This is a 0-12 Transformer with center tap connection. It has a maximum current output of 1 A.Perfect for making power supplies. Use it to step down 240 V AC to 12V. MADE IN CHINA - [Rocker Switch On-Off-ON 15A/250VAC KCD3](https://at4electronics.com/product/rocker-switch-on-off-on-15a-250vac-kcd3/): Type: KCD3 Terminal: 3 pins (ON-OFF-ON) High Current Load Rating: 16A/250V ; 20A/125V Color: Black - [ON/OFF Switch 2 Pins](https://at4electronics.com/product/on-off-switch-2-pins/): 6A 250VAC 10A 125VAC - [Mini push button 2pins](https://at4electronics.com/product/mini-push-button-2pins/): Product Specifications Connector Type Through_hole Controller Type Push Button Material Plastic Mounting Type Panel Mount Number of Items 1 Operating Voltage 12 volts Size 6x6x4.3mm Switch Type Push Button Switch , Metal - [Press OMRON 4pin (12x12x7.5 mm Tack Switch With Cap)](https://at4electronics.com/product/press-omron-4pin-tack-switch-12127-5-push-button/): 12 x 12 Standard Tact Switch , Stem size 7.5mm , Operating life : 100K cycles , Operating Force : 100, 130, 160 & 250 gf. - [Push Switch On/Off Self-Lock 12mm 2pin](https://at4electronics.com/product/push-switch-on-off-self-lock-12mm-2pin/): Specification Model number 12mm DS428 Mounting dimensions φ12 Rating 3A/125VAC || 1.5A/250VAC Contact resistance 50mΩ max Insulation resistance 100MΩ min Dielectric strength 2000Vac, 50Hz for 1min Mechanical Life 2×105 cycles Electrical life 5×104 cycles IP degree IP40 Terminals 2 pin Operation temperature -25 to 55℃ Alias name 12mm DS428 push button switch Related - [Momentary Push Button DS318 - On/Off Switch](https://at4electronics.com/product/momentary-push-button-ds318-on-off-switch/): The momentary push button DS318 is designed to function as a practical on/off switch for controlled, momentary operation in a wide range of electronics projects and industrial applications. Built for engineers, technicians, and DIY makers, this momentary switch supports clear, responsive actuation—ideal when you need a reliable push button switch behavior without maintaining a latched … Continue reading - [DIP SWITCH 4WAY](https://at4electronics.com/product/dip-switch-4way/): DIP Package size and shape switch 4 Way , Suitable for digital inputs (High/Low) with very good materials. - [Mini Toggle Switch 3 Pins-SPDT-ON-OFF-ON 6A/125V AC](https://at4electronics.com/product/mini-toggle-switch-5a/): Use this mini toggle switch for reliable control in compact equipment and panels. Built with a SPDT design and 3 pins, it supports dependable switching between two active positions. The on-off-on action lets you alternate functions while maintaining a clear OFF state for safe operation. With a rating of 6A 125V AC, this toggle switch … Continue reading - [SW7 - ON/OFF Switch PCB mounted](https://at4electronics.com/product/sw7-on-off-pcb-mounted-3pin/): SW7 – ON/OFF Switch PCB mounted – suitable for breadboard as well - [PRESS ON/OFF PCB MOUNT 6 PIN](https://at4electronics.com/product/press-on-off-pcb-mount-6-pin/): PRESS ON/OFF PCB MOUNT 6 PIN is a reliable pcb mount switch-style electronic component designed to integrate cleanly onto a circuit board connector on your circuit board. Built in a press on off pcb mount configuration with a 6 pin layout, it supports stable connections for electronics hobbyists, engineers, DIY repairers, and professional technicians who … Continue reading - [Limit switch (12.8*5.7*5.4mm)](https://at4electronics.com/product/limit-switch-12-85-75-4mm/): Microswitch is suitable for using in each kind of control circuit with the rated voltage less than 250V and rated current less than 1A (DC and AC effective value) for controlling elements,it is the sense switch with the certain movement strength through the certain traveling to cause the electronic contact speed. Dimensions of this limit … Continue reading - [Photo Diode PT3401B-B (Transmitter)](https://at4electronics.com/product/photo-diode-pt3401b-b-transmitter/): Photo Diode PT3401B-B (Transmitter). - [Photo Diode PT3401B-M-3B (Receiver)](https://at4electronics.com/product/photo-diode-pt3401b-m-3b-receiver/): Photo Diode PT3401B-M-3B (Receiver) - [IR Receiver TSOP 1838](https://at4electronics.com/product/ir-receiver-tsop-18/): IR Receiver TSOP 1838 - [IR Receiver KSM803](https://at4electronics.com/product/ir-receiver-ksm803/): KSM-803LM Optical Receiver Module With high quality (MADE IN TAIWAN). The KSM-803LM consist of a PIN Photodiode of high speed and a preamplifier IC in the package as an receiver for Infrared remote control systems FEATURES One mold small package 2.4~6.0 Volt supply voltage, low power consumption Shielded against electrical field disturbance High immunity against … Continue reading - [Infrared LED TX (IR LED)](https://at4electronics.com/product/infrared-led-tx-ir-led/): 5mm LED size Transmitter Infrared - [FC-51 Infrared Obstacle Avoidance Proximity Sensor Module ( IR Sensor )](https://at4electronics.com/product/ir-sensor/): Proximity Sensor Module - [Relay 12V Coil 5pin](https://at4electronics.com/product/relay-12v-coil-5pin/): Relay Coil Voltage: 12Vdc - [Re 15 - Relay 5V Coil 5pin](https://at4electronics.com/product/re15-relay-5v-coil-5pin/): Relay Coil Voltage: 5Vdc. - [Pc817=EL817 opto cappler](https://at4electronics.com/product/pc817el817-opto-cappler/): 4pin DIP package Photo Coupler. - [LED 3 mm White Color](https://at4electronics.com/product/led-3mm-white/): 3 mm White color LED illumination 14000~15000 mcd , High brightness and long life time with wide rand of operations. - [LED 3 mm Blue Color](https://at4electronics.com/product/led-3mm-blue-blue/): 3 mm Blue color LED illumination 14000~15000 mcd , High brightness and long life time with wide rand of operations. - [LED 3 mm Yellow Color](https://at4electronics.com/product/led-3mm-yellow/): LED 3 mm Yellow color LED illumination 4000~5000 mcd & Wave length (575 ~ 590 nm) - [LED 3 mm Green Color](https://at4electronics.com/product/led-3mm-green/): 3 mm Green color LED illumination 4000~5000 mcd. High brightness and long life time with wide rand of operations. - [LED 3 mm Red Color](https://at4electronics.com/product/led-3mm-red/): 3 mm Red color LED illumination 5000~6000 mcd. High brightness and long life time with wide rand of operations. - [LED 5mm white](https://at4electronics.com/product/led-5mm-white/): 5 mm White color LED illumination 14000~15000 mcd , High brightness and long life time with wide rand of operations.   - [LED 5 mm Blue Color](https://at4electronics.com/product/led-5mm-blue-blue/): 5 mm Blue color LED illumination 9000~10000 mcd. High brightness and long life time with wide rand of operations (2.7 ~ 3.6 V). - [LED 5 mm Green Color](https://at4electronics.com/product/led-5mm-green/): 5 mm Green color LED illumination 4000~5000 mcd - [LED 5 mm Red Color](https://at4electronics.com/product/led-5mm-red/): 5 mm RED color LED illumination 4000~5000 mcd & Wave length (610 ~ 650 nm). High brightness and long life time with wide rand of operations (2.7 ~ 3.6 V). - [LED 5 mm Yellow Color](https://at4electronics.com/product/led-5mm-yellow/): 5 mm Yellow color LED illumination 4000~5000 mcd - [LED 5 mm Blue Color](https://at4electronics.com/product/led-5mm-blue-white/): 5 mm Blue color LED illumination 9000~10000 mcd. High brightness and long life time with wide rand of operations (2.7 ~ 3.6 V). - [LED 5 mm Clear Yellow Color](https://at4electronics.com/product/led-5mm-yellow-white/): 5 mm Yellow color LED illumination 7000~8000 mcd. High brightness and long life time with wide rand of operations (2.7 ~ 3.6 V).   - [LED 3MM TWO COLOR (RED & GREEN)](https://at4electronics.com/product/led-3mm-two-color-red-green/): Two Color 3mm LED (Red & Green). - [RGB LED 5MM Common Anode](https://at4electronics.com/product/rgb-led-5mm-anode/): These are general purpose 5mm RGB common anode (CA) LEDs that have a Diffused lens. KEY FEATURES OF LED RGB 5MM CA Diffused LENS: RGB (Red/Green/Blue) LEDs contained in same package Common anode (CA) 5mm diameter Lens Appearance: Diffuse 20mA max drive current Forward voltage drop of 2.1V red and 2.8V for blue and green … Continue reading - [RGB LED 5MM Common cathode](https://at4electronics.com/product/rgb-led-5mm-cathode/): These are general purpose 5mm RGB common cathode (CC) LEDs that have a Diffused lens. KEY FEATURES OF LED RGB 5MM CC Diffused LENS: RGB (Red/Green/Blue) LEDs contained in same package Common cathode (CC) 5mm diameter Lens Appearance: Diffuse 20mA max drive current Forward voltage drop of 2.1V red and 2.8V for blue and green … Continue reading - [LCD (Character LCD 2x16) Blue](https://at4electronics.com/product/lcd-character-lcd-2x16-blue/): Character LCD 2×16 with blue back light. HD44780 compatible LCD Characters Display 16×02 blue color, 5V operating voltage. Dimension of the module is 80 x 36 x 13.5 mm. Take note, the picture is for reference only, LCD pcb design may have slightly difference, but the display functionality and pinout are same! Pinout: 1 GND … Continue reading - [7432 (Quad 2-Input OR Gate)](https://at4electronics.com/product/7432-or/): 74HC32 is a Quad 2-Input OR Gate – In 14-DIP Package. - [7408 (Quadruple 2-input AND gates)](https://at4electronics.com/product/7408-and/): 74HC08 is a Quadruple 2-input AND gates – In 14-DIP Package. - [7402 (Quadruple 2-input NOR gates)](https://at4electronics.com/product/7402-nor/): 74HC02 is a Quadruple 2-input NOR gates – In 14-DIP Package - [7404 (NOT Logic Inverter)](https://at4electronics.com/product/7404-inverter/): 74HC04 is a Logic Inverter – In 14-DIP Package. - [7400 (Quad 2-input NAND Gates)](https://at4electronics.com/product/7400-nand-gate/): 74HC00 is a Quad. 2-input NAND Gates – 14-DIP Package - [18650 Battery Case Holder 2 cells](https://at4electronics.com/product/18650-battery-case-holder-2-cells/): 18650 Battery Case Holder 2 cells - [18650 Battery Charger 2 cells](https://at4electronics.com/product/18650-battery-charger-2-cells/): 18650 Battery Charger 2 cell - [18650 Battery Charger 1 cell](https://at4electronics.com/product/18650-battery-charger-1-cell/): 18650 Battery Charger - [Coin Battery CR2032 Holder](https://at4electronics.com/product/coin-battery-cr2032-holder/): Coin Battery Holder - [Coin Cell Battery CR2016 3V Lithium](https://at4electronics.com/product/coin-cell-battery-cr2016-3v-lithium/): Coin Cell Battery CR2016 3V Lithium - [Coin Cell Battery CR2032 3V Lithium](https://at4electronics.com/product/coin-cell-battery-cr2032-3v-lithium/): Coin Cell Battery CR2032 3V Lithium - [18650 Li-ion Battery 3.7V 1500mAh (New)](https://at4electronics.com/product/18650-li-ion-battery-3-7v-1500mah-new/): 18650 Li-ion Battery 3.7V 1500mAh - [18650 Li-ion Battery 3.7V 2400mAh (New)](https://at4electronics.com/product/18650-li-ion-battery-3-7v-2400mah-new/): 18651 Li-ion Battery 3.7V 2400mAh - [Rechargeable Li-ion Samsung Battery High Drain INR 18650-30Q 3000mAh 3.6V 15A ( New)](https://at4electronics.com/product/18651-li-ion-battery-3-7v-3000mah-used-samsung/): Specifications: Manufacturer:   Samsung SDI Model:   INR18650-30Q (30Q) Size:   18650 Style:   Button Protected:   NO, UNPROTECTED. This cell is unprotected and intended for use in protected battery packs only and NOT individually or as a standalone product. In order to operate safely it must have additional protection in the form of a … Continue reading - [18650 Li-ion Battery 3.7V 1000mAh (New)](https://at4electronics.com/product/18650-li-ion-battery-3-7v-1000mah-new/) - [Micro SD Card Module](https://at4electronics.com/product/micro-sd-card-module/): The module (MicroSD Card Adapter) is a Micro SD card reader module, through the file system and the SPI interface driver, MCU to complete the file system to read and write MicroSD card. Users can directly use IDE comes with an SD card to complete the library card initialization and read-write Module features are as … Continue reading - [Shaft Rotary Encoder Sensor](https://at4electronics.com/product/shaft-rotary-encoder-sensor/): This rotation sensor or  incremental encoder (unlike potentiometer) has no limit for number of counting. It can also detect clockwise and counter clockwise rotation and that’s why it has 2 pins (SIA and SIB) for detecting rotation. Basically, it translates the  rotary motion into a sequence of pulse signals. By comparing the square wave generated … Continue reading - [Water Level/Detection Sensor](https://at4electronics.com/product/water-level-detection-sensor/): Water detection sensor is used to detect water leak, water level or rains. This is obtained by having a series of parallel wires exposed traces. The sensor traces have a weak pull-up resistor of 1 MΩ. The resistor will pull the sensor trace value high until a drop of water shorts the sensor trace to … Continue reading - [Soil Moisture Sensor- Water level](https://at4electronics.com/product/soil-moisture-sensor-water-level/): Description : This Moisture Sensor uses Immersion Gold which protects the nickel from oxidation. Electroless nickel immersion gold (ENIG)  has several advantages over more conventional (and cheaper) surface platings such as HASL (solder), including excellent surface planarity (particularly helpful for PCB’s with large BGA packages), good oxidation resistance, and usability for untreated contact surfaces such … Continue reading - [Linear Hall Magnetic Sensor KY-024](https://at4electronics.com/product/linear-hall-magnetic-sensor-ky-024/): Typically KY-024 Linear Magnetic Hall Sensor is used to calculate (and therefore adjust or stabilize) the speed of a mechanism in rotation or as a proximity switch. There are also sensors switch type, which are limited to only intervene on reaching a threshold of intensity (see KY003) and therefore provide only one output ON / OFF … Continue reading - [Pulse Heart Rate Module With Accessories](https://at4electronics.com/product/pulse-heart-rate-module-with-accessories/): The Pulse Sensor Amped is a plug-and-play heart-rate sensor for Arduino. It can be used by students, artists, athletes, makers, and game & mobile developers who want to easily incorporate live heart-rate data into their projects.It essentially combines a simple optical heart rate sensor with amplification and noise cancellation circuitry making it fast and easy … Continue reading - [Precision Potentiometer 10K Ohm 10 Turn](https://at4electronics.com/product/precision-potentiometer-10k-ohm-10-turn/): This Potentiometer is widely used to adjust timer, speed, temperature in all kinds of equipments. Specifications: Material:Plastic Color:Blue Product Name:Potentiometer; Model : 3590S-2-203L. Type : Rotary Shaft. Technology : Wirewound. Turns : 10; Resistance Value : 10K Ohm Resistance Tolarance : +/-5%; Linearity : +/-0.25%; Shaft Diameter : 6.35mm Threaded Diameter : 9mm Total Length:40mm … Continue reading - [Metal Caster Wheel for Robot](https://at4electronics.com/product/metal-caster-wheel-for-robot/): Metal ball caster, 1mm thick steel plate from the machine stamping, it has the capability to support  20KG payload.  The Caster is strong and lightweight with a total weight of only 120g. allows the robot to walk or move to a more flexible and comfortable A caster wheel could be used in our two chassis: … Continue reading - [PU Clear Hose Tube Pipe 1 Meter (6.5×4.5mm)](https://at4electronics.com/product/clear-hose-tube-pipe-1-meter-6-54-5mm/): PU Clear Hose Tube Pipe 1 Meter (6.5×4.5mm) Product Details High quality material and good strength ,Simple and efficient way of binding, Long service life.Joywayus Pneumatic Hose Air Tubing Pipes are flexible tubes can be made as various shapes. Joywayus Pneumatic Hose Tubing is made of high quality raw materials with thick walls and wear … Continue reading - [Submersible Water Pump 5V](https://at4electronics.com/product/submersible-water-pump-5v/): Specifications: Super silent, almost no sound. Light weighted. Waterproof, can be submersed in water and still working fine. Can be powered by Arduino, computer, mobile phone charger or USB driver. 【Voltage】 DC3-5V 【Current】 100-200mA 【Head】 0.3-0.8 meters 【Flow】 1.2-1.6L / min - [Free Wheel 2.5″](https://at4electronics.com/product/free-wheel-2-5/) - [Capacitive Touch Sensor TTP223 Red](https://at4electronics.com/product/capacitive-touch-sensor-ttp223/): TTP223 Capacitive Touch Sensor Module – Red is based on a touch-sensing IC (TTP223) capacitive touch switch module. The module provides a single integrated touch sensing area of 11 x 10.5mm with a sensor range of ~5mm. In the normal state, the module output low, low power consumption. When a finger touches the corresponding position, … Continue reading - [PWM DC Motor Speed Control Switch Governor 12V-40V 10A](https://at4electronics.com/product/pwm-dc-motor-speed-control-switch-governor-12v-40v-10a/): The 12V to 40V 10A DC Motor PWM Speed Controller is expertly designed for controlling the speed of DC motors. It utilizes a Pulse-Width-Modulated (PWM) DC voltage, allowing for a fully adjustable duty cycle from 10% to 100%. This versatility makes it an ideal choice for a wide range of applications. - [PCB Board Fiber (10X10 ) CM](https://at4electronics.com/product/pcb-board-fiberglass-fr4-1010/): FR4 fiberglass PCB board offers strength, insulation, flame resistance, and durability, making it the trusted foundation for reliable electronic circuits. - [(NC) (Thermal Switch KSD301 (100° C)](https://at4electronics.com/product/thermal-switch-ksd301-100-c/): KSD301 Temperature Switch Bimetal 10A 250V Automatic reset Voltage: 250V Current: 10A Hole Pitch: 25mm Surface Diameter: 16mm Circuit resistance: 50 Mohm Insulation resistance: >100 Mohm Withstand voltage: 1500V AC/minute Opening-closing durability: 10000 times or more Normally closed thermal switch means that the contacts of thermal switch normally remain closed. When temperature increases to the set … Continue reading - [(NC) (Thermal Switch KSD301 (90° C)](https://at4electronics.com/product/thermal-switch-ksd301-90-c/): KSD301 Temperature Switch Bimetal 10A 250V Automatic reset Voltage: 250V Current: 10A Hole Pitch: 25mm Surface Diameter: 16mm Circuit resistance: 50 Mohm Insulation resistance: >100 Mohm Withstand voltage: 1500V AC/minute Opening-closing durability: 10000 times or more Normally closed thermal switch means that the contacts of thermal switch normally remain closed. When temperature increases to the set … Continue reading - [Arduino Nano shield](https://at4electronics.com/product/arduino-nano-shield/) - [ESP32 Development Board (WIFI and Bluetooth) with CP2102](https://at4electronics.com/product/esp32-development-board-wifi-and-bluetooth-with-cp2102/): Tile ESP32-DevKitC with a built-in module ESP-WROOM-32. The module has leads in the form of goldpins, pitch 2.54 mm. The system from the family ESP32 for communication in a wi-fi network in the 2.4 GHz band and in the Bluetooth standard BLE / v4.2. Is powered with the voltage 5 V. The system has 30 leads along with popular interfaces i.a.: … Continue reading - [NODEMCU ESP8266 WiFi Programming & Development Kit With CP2102 )](https://at4electronics.com/product/nodemcu-esp8266-wifi-programming-development-kit-with-cp2102/): NodeMCU is an open source development board and firmware based in the widely used ESP8266 -12E WiFi module. It allows you to program  the ESP8266 WiFi module with the simple and powerful LUA programming language or Arduino IDE. With just a few lines of code you can establish a WiFi connection and define input/output pins … Continue reading - [STM32F103C6T6 32-Bit ARM (The Blue Pill) Development Board](https://at4electronics.com/product/stm-32-f103c8t6-controller/): STM32F103C6T6 minimum system board microcontroller core board STM32 ARM - [ATMega328 – With Bootloader for “ARDUINO UNO”](https://at4electronics.com/product/atmega328-with-bootloader-for-arduino-uno/): Atmega328 has 28 pins in total. It has 3 Ports in total which are named as Port B, Port C and Port D. Port C is an analogue Port and it has six pins in total. So, in simple words, ATmega328 has 6 analogue pins. Port B and Port D are digital ports and have … Continue reading - [L293 Motor Driver Shield](https://at4electronics.com/product/l293-motor-driver-shield/): Specification Power supply: 4,5V to 16 V Driver: 2 x L293D Maximum current per channel: 600 mA The shift register 74HC595 The number of supported motors: 4 DC motors 2 stepper motors 2 servo connectors The reset button Size: 7cm x 5.4cm x 2cm Description The module allows you to control four DC motors (DC) or two stepper motors using Arduino kits. … Continue reading - [Drv8825 – Stepper Motor Driver](https://at4electronics.com/product/drv8825-stepper-motor-driver/): 3D Printer StepStick DRV8825 Stepper Motor Drive Carrier Reprap RAMPS Description: The DRV8825 stepper motor driver carrier is a breakout board for DRV8825 microstepping bipolar stepper motor driver. The module has a pinout and interface that are nearly identical to those of our A4988 stepper motor driver board, so it can be used as a … Continue reading - [RAMPS 1.4 Reprap 3D Printer Arduino Mega Shield (RAMPS)](https://at4electronics.com/product/ramps-1-4-reprap-3d-printer-arduino-mega-shield-ramps/): The RAMPS 1.4 (RepRap Ardunio Mega Shield) is an all-in-one design to fit the necessary components for a 3D printer into one plug in shield for an Ardunio MEGA. The plug in shield design includes plug in stepper drivers and extruder control electronics sockets for easy service, part replacement, upgrade-ability and expansion. Additionally, a number … Continue reading - [Arduino Shield "UNO CNC Machine V3 Board"](https://at4electronics.com/product/arduino-shield-uno-cnc-machine-v3-board/): This board is widely used for driver expansion board of  engraving machin. There are total 4 ways slots for stepper motor driver modules (Model A4988 or Drv8825 – It sold separately at our store ), and it can drive 4 ways stepper motors each up to 2A. Each way stepper motor has two I/O ports … Continue reading - [DHT22 (Temperature Humidity Sensor )](https://at4electronics.com/product/dht22-temperature-humidity-sensor/): The DHT22 Humidity / Temperature Sensor Module uses a 1-wire interface to report both humidity (0 – 99.9%) and temperature (-40 – 80°C). PACKAGE INCLUDES: DHT22 Humidity / Temperature Sensor Module 3 x Female / Female jumper cable for connecting the module to a microcontroller. KEY FEATURES OF DHT22 HUMIDITY / TEMPERATURE  MODULE: Reports humidity … Continue reading - [DHT11 (Temperature Humidity Sensor )](https://at4electronics.com/product/dht11-temperature-humidity-sensor/): Parameters: Supply voltage: 3 V to 5.5 V Average current consumption: 0.2 mA It does not require additional external components Temperature Measuring range: 0 – 50 °C Resolution: 8-bit (1 °C) Accuracy: 1 °C Response time: 6 – 15 seconds (usually 10 seconds) Humidity: Measuring range: 20 – 90% RH Resolution: 8-bit (±1 % RH*) … Continue reading - [OLED Display I2C 4 Pin 0.96 – Unsoldered](https://at4electronics.com/product/oled-display-i2c-4-pin-0-96-unsoldered/): OLED blue display with a diagonal of 0.96″ and a resolution of 128 x 64 px. The screen is based on SSD1306 driver, works with voltages of 3.3 V and 5 V, and communicates over I2C. - [Soldering wire tube 17gm 1mm](https://at4electronics.com/product/soldering-wire-tube-17gm-1mm/): A tube with 17g soldering tin (leaded). The thickness is 1mm. Flux is incorporated into the soldering tin so that it flows easily. The indication of the soldering tin is 60% Tin and 40% lead. Melting point:  185°C This tube has a hole so it can easily be pulled out.   Alloy Tin/Lead: 60/40 2% … Continue reading - [Soldering Wire 0.6mm|50Gm (Alloy:70/30) Made in Singapore](https://at4electronics.com/product/soldering-wire-0-6mm50gm-alloy70-30/): The Soldering Wire 0.6mm|50Gm (Alloy:70/30) Made in Singapore is a high-quality, flux-cored solder designed for precision soldering in electronics. With a diameter of 0.6mm and a weight of 50 grams, this solder wire is made from a 70% tin and 30% lead alloy, offering excellent solderability and reliability. Manufactured in Singapore, it adheres to stringent quality standards, ensuring consistent performance for various soldering tasks. Its non-corrosive nature and ease of use make it an ideal choice for both professional and hobbyist electronics projects. Features : Flux Cored: Simplifies the soldering process by eliminating the need for separate flux application, ensuring clean and strong solder joints. Non-Corrosive: Safe for use on sensitive electronic components without causing damage over time. High-Quality Alloy: The 70/30 tin-lead composition provides a good balance of melting point and mechanical strength. Good Solderability: Facilitates easy and efficient soldering, even for complex electronic assemblies. No Spattering: Reduces mess and potential damage to surrounding components during soldering. Versatile Use: Ideal for soldering circuit boards, electronics devices, and other electrical applications. Singapore Manufacturing: Produced under high-quality standards, ensuring reliability and performance. Specifications :   Specification Detail Alloy Composition 70% Tin (Sn), 30% Lead (Pb) Wire Diameter 0.6mm Weight 50 grams Country of Origin Singapore Applications : Electronics Assembly: Soldering electronic components such as resistors, capacitors, integrated circuits, and more onto printed circuit boards (PCBs). Circuit Board Repairs: Ideal for repairing damaged or faulty circuit boards in electronic devices. General Electrical Wiring: Suitable for creating reliable electrical connections in various devices and systems. DIY Electronics Projects: Perfect for hobbyists working on prototyping or custom electronics projects. Package Include: 1 x Soldering Wire 0.6mm|50Gm (Alloy:70/30) Made in Singapore. - [Soldering Iron 220V 60W (goot-china) KS-60R](https://at4electronics.com/product/soldering-iron-220v-60w-goot-china-ks-60r/): Our best-selling soldering iron.   - [Multimeter/AVO Probes With Thin Pins Compatible With Breadboard Holes](https://at4electronics.com/product/multimeter-avo-probes-with-thin-pins-compatible-with-breadboard-holes/) - [Multimeter/AVO Probes High Quality](https://at4electronics.com/product/multimeter-avo-probes-high-quality/) - [Multimeter/AVO Probes](https://at4electronics.com/product/multimeter-avo-probes/) - [Desoldering Pump](https://at4electronics.com/product/desoldering-pump/): Suction strong, fast and effective removal of remaining solder Quality plastic nozzle, high temperature, good solvent resistance One-handed operation, durable and easy to work MADE IN CHINA - [Generic DT9205A Digital Multimeter](https://at4electronics.com/product/generic-dt9205a-digital-multimeter/): Multimeter Over load protection:Used the PTC protection circuit for Resistance, frequency measurement Double Current Fuses. High quality ,more Safety. The digital multimeter with large digital display and color coded LED’s for battery quick check. As a general measurement tool and widely used in the school, laboratory,factory and other social field.It will be a reliable friend … Continue reading - [Breadboard Jumper Wires Kit](https://at4electronics.com/product/breadboard-jumper-wires-kit/) - [Male Dc Plug to 9V Battery Cap](https://at4electronics.com/product/male-dc-plug-to-9v-battery-cap/): 9V Battery clip with standard DC male plug - [Female DC Power Socket Jack prewired](https://at4electronics.com/product/female-dc-power-socket-jack-prewired/): * DC Power Pigtails Plug Lead Cord wire CCTV Standard 2.1mm DC Power pigtail connection * 5.5 mm (outside dimension)x 2.1 mm (inside dimension) * Used to connect to camera power so you do not have to cut plug which in most cases will void warranty * Center is positive * Color Coded power connecter … Continue reading - [Male Dc Power Socket Jack prewired](https://at4electronics.com/product/male-dc-power-socket-jack-prewired/): DC Male Pigtail External diameter of the plug: 5.5mm Internal diameter of the plug: 2.1mm - [Crocodile wires](https://at4electronics.com/product/crocodile-wires/): different colored wires (Red , Yellow , Black , White , Green) ended by crocodiles , each wire is 45 cm long. - [MAX471 Voltage And Current Sensor Module Consume Voltage Load Detection Module](https://at4electronics.com/product/max471-voltage-and-current-sensor-module/): This module can be used to test the current and voltage The principle of voltage test based on principle of resistive voltage divider design, can make the red terminal connector input voltage to 5 times smaller for Arduino analog input voltages up to 5 v, the voltage detection module input voltage not greater than 5Vx5=25V … Continue reading - [Kit Battery (9V Input – Output 9V & 5V) to Breadboard](https://at4electronics.com/product/kit-battery-9v-input-output-9v-5v-to-breadboard/): Kit Battery (9V Input – Output 9V & 5V) to Breadboard - [Breadboard Power Supply Module 3.3V 5V](https://at4electronics.com/product/breadboard-power-supply-module-3-3v-5v/): Features Breadboard power supply module, with 5 V, 3.3 V output voltages Apply to MB102 Standard breadboard Input voltage: 6.5-12 V (DC) or 5V USB power supply Output voltage: 3.3V and 5V can switch over Maximum output current: <700 ma Input voltage ON/OFF switch Independent control of upper and Lower Bread Board Power Rails. Can … Continue reading - [IMU (3 Axis Gyro + 3 Axis Accelorometer ) MPU-6050](https://at4electronics.com/product/mpu-6050/): Axis analog gyro sensors+ 3 Axis Accelerometer Module The MPU-6050 is the latest product of invensense company products. This sensor is used in Ardupilot autopilot. The sensor contains a 3 axis MEMS accelerometer and a 3 axis MEMS gyro in a single chip. It is very accurate, since it contains 16-bits analog to digital conversion hardware … Continue reading - [Relay Module 24V (4 Channels)](https://at4electronics.com/product/relay-4-module-24v/): The module is equipped with four relays with a coil powered with a voltage of 24 V with optical isolation of input and mounting holes. The system allows you to control actuators with microcontroller ports or any commissioning set. Description: Relay module 4 channels with optoisolation – 10A / 250VAC contacts – 24V coil The … Continue reading - [Relay Module for Arduino (2 Channels - 5V)](https://at4electronics.com/product/relay-2-module/): You can not control switching on/off your home lamp or laundry directly with Ardunio or microcontroller. To do that you need relay module. This relay module consists of 2 relays. Each relay is connected to a current  buffer so that you can connect them directly to a Microcontroller or Arduino. Using these relays you can … Continue reading - [Relay Module (1 channel)](https://at4electronics.com/product/relay-1-module/): Relay Module 5Vdc – 1 Relay For Arduino & Microcontrollers Specification: Maximum load: AC 250V/10A, DC 30V/10A Trigger current: 15mA Working voltage: 5V Module size: 50 x 26 x 18.5mm (L x W x H) Four mounting bolts holes, diameter 3.1mm   Module interface: DC+: positive power supply (VCC) 5Vdc DC-: negative power supply (GND) … Continue reading - [Microphone Sound Detection Sensor 4 Pin](https://at4electronics.com/product/microphone-sound-detection-sensor-4-pin/): Product Description: sound sensor – Microphone The sound detector with a small electret microphone, a voltage supply range from 3.3 V to 5 V. The module is easy to use, has two outputs: an analog – to measure the intensity of the digital signal and changing state when exceeding a certain level. Sound Detection Sensor Module Pin … Continue reading - [photo-resistor LDR light sensor module](https://at4electronics.com/product/photo-resistor-ldr-light-sensor-module/): LM393 Optical Sensitive Resistance Light Detection Photosensitive Sensor Module for arduino DIY Kit QUICK OVERVIEW: LDR module 4 PIN Operating voltage 3.3V-5V Signal output indicator light. LDR module 4 PIN Able to detect ambient brightness and light intensity Adjustable sensitivity (via blue digital potentiometer adjustment) This LM393 Photosensitive Light-Dependent Control Sensor Module is using a … Continue reading - [flame sensor module](https://at4electronics.com/product/flame-sensor-module/): This module is sensitive to the flame and radiation. It also can detect ordinary light source in the range of of a wavelength 760nm-1100 nm. It can be used as a flame alarm or in fire fighting robots. Features Detects a flame or a light source of a wavelength in the range of 760nm-1100 nm. 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The ULN2003A contains seven darlington transistor drivers and is somewhat like having seven TIP120 transistors … Continue reading - [5V Small Stepper Motor](https://at4electronics.com/product/5v-small-stepper-motor/): Overview: Voltage: DC 5V Diameter: 28mm Step Angle: 5.625 x 1/64 Reduction Ratio: 1/64 - [Servo Motor TowerPro MG995](https://at4electronics.com/product/servo-motor-towerpro-mg995/): High Speed Digital MG995 Metal Gear 2BB Torque RC Servo for HPI Savage XL FUTABA   Description Power Supply: Through External Adapter. Stable and Shock Proof Connector Wire Length 300mm Operating Speed : 0.17sec / 60 degrees (4.8V no load) Operating Speed : 0.13sec / 60 degrees (6.0V no load) Stall Torque : 8.5 kg-cm (180.5 … Continue reading - [Servo Motor Micro (180) 1.6 kg.cm Plastic Gears "SG90"](https://at4electronics.com/product/servo-motor-micro-1-6kg-cm-sg-90/): Overview SG90 is a high quality ,low-cost servo for all your mechatronic needs. 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It needs a miniB USB cable. - [MQ-135 Air Quality Sensor Detection Module](https://at4electronics.com/product/mq-135-air-quality-sensor-detection-module/) - [MQ-5 Gas Sensor Module](https://at4electronics.com/product/mq-5-gas-sensor-module/): Sensitive material of MQ-5 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensors conductivity is more higher along with the gas concentration rising. The sensor convert change of conductivity to correspond output signal of gas concentration. MQ-5 gas sensor has high sensitity to Methane, Propane … Continue reading - [MQ-4 Gas Sensor Module](https://at4electronics.com/product/mq-4-gas-sensor-module/): Features: Dual-way Signal Output, Analog output and TTL level outputHigh sensitivity to LPG, gas, alcohol, hydrogen and more Fast response and recovery Good steadiness and long service life Great for home or factory gas leakage detection Use for Detecting: Combustible gas such as LPG, butane, methane, alcohol, propane, hydrogen, smoke, etc Specification: Main chip:MQ-4 gas … Continue reading - [MQ-2 Gas Sensor Module "Smoke , Butane & Propane Detection"](https://at4electronics.com/product/mq-2-gas-sensor/): The MQ-2 Gas Sensor module is useful for gas leakage detecting in home and industry. It can detect LPG, i-butane, propane, methane ,alcohol, hydrogen and smoke. The module have a built-in variable resistor to adjust the sensitivity of the sensor. Features: Size: 32mmX22mmX27mm Chip: LM393, ZYMQ-2 gas sensors Working voltage: DC 5V Dual signal output … Continue reading - [Double Clear Plastic Box](https://at4electronics.com/product/big-box/): 200x135x45 mm Design with 8 compartments, double closure, plastic material in clear white color. You can remove the some blocks between two compartments to form a longer compartment. A ring on one side ensures you can hook the case to somewhere. 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Two extra GPIOs can use. AT commands firmware. New IC … Continue reading - [PIR Motion Sensor Module](https://at4electronics.com/product/pir-motion-sesnor/): HC-SR501 is based on infrared technology, automatic control module, using Germany imported LHI778 probe design, high sensitivity, high reliability, ultra-low-voltage operating mode, widely used in various auto-sensing electrical equipment, especially for battery-powered automatic controlled products. Specification: Voltage: 5V – 20V Power Consumption: 65mA TTL output: 3.3V, 0V Delay Time Adjustable (3-5 min) Lock time: 0.2 … Continue reading - [Xg-50 solder paste](https://at4electronics.com/product/xg-50-solder-paste/): solder paste designed for reliable results in electronics assembly and PCB assembly workflows. Specifically identified as XG-50 solder paste (model/variant: Xg-50), this material is built for consistent performance where precision soldering matters. 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As a potentiometer, it functions as a reliable variable resistor for applications like calibration, bias control, signal adjustment, and manual tuning. … Continue reading - [Soldering Iron 908 Adjustable Temperature 220V 60W](https://at4electronics.com/product/soldering-iron-908-adjustable-temperature-220v-60w/): Versatile 60W soldering iron with adjustable temperature control, perfect for precise soldering in electronics, repair, and DIY projects. - [Soldering Iron Sponge 55*55mm](https://at4electronics.com/product/soldering-iron-sponge-5555mm/): Soldering iron sponge which, when kept moist, serves to keep soldering iron bits clean. - [Soldering Iron Sponge 50mm Round](https://at4electronics.com/product/soldering-iron-sponge-50mm-round/): These Soldering Iron Sponges are ideal to be used as replacements for old sponges. - [Soldering Iron Tip Cleaner WTS-599B](https://at4electronics.com/product/soldering-iron-tip-cleaner-wts-599b/): Soldering Iron Tip Cleaner WTS-599B - [PICKIT 3.5 Debugger and Programmer](https://at4electronics.com/product/pickit-3-5-debugger-and-programmer/): PICKIT 3.5 Debugger and Programmer - [DC Fan 12V 0.18A (9x9cm)](https://at4electronics.com/product/dc-fan-12v-0-22a-9x9cm/): A compact 9x9cm DC fan operating at 12V with 0.18A current, ideal for cooling electronic devices efficiently. - [Transformer 2A , (220Vac TO 0-24Vac)](https://at4electronics.com/product/transformer-2a-220vac-to-0-24vac/): Transformer 220Vac to 24V AC 2A 2 Wire - [4075 IC Triple 3-Input OR Gate](https://at4electronics.com/product/4075-ic-triple-3-input-or-gate/): A 3-input OR gate works just like a normal OR gate. Its output becomes HIGH if any of the inputs are HIGH. Otherwise, its output is LOW. Check the truth table below to see the result for any combination of inputs. - [SN74LS11N Triple 3-input AND Gate DIP-14 -7411 ( Triple 3-input AND gate)](https://at4electronics.com/product/sn74ls11n-triple-3-input-and-gate-dip-14-7411-triple-3-input-and-gate/): Features: Three Independent AND Gates. Compatibility: Input CMOS, Output CMOS and TTL. High-Speed CMOS Logic. Outputs Directly Interface to CMOS, NMOS. Large Operating Voltage Range. Wide Operating Conditions. Not Recommended for New Designs. Low Power Consumption. Pin Assignments:   Specifications: Datasheet SN74LS11N Product Category Logic Gates Logic Family LS Series 74LS11 Model SN74LS11N Product Single-Function … Continue reading - [NFC/RFID 13.5 Mhz (Read/Write)](https://at4electronics.com/product/nfc-rfid-13-5-mhz-read-write/): NFC Module Features Small dimension and easy to embed into your project Support I2C, SPI and HSU (High Speed UART), easy to change between those modes read/write capability Support RFID reading and writing, P2P communication with peers, NFC with Android phone Up to 5cm~7cm reading distance On-board level shifter, Standard 5V TTL for I2C and UART, … Continue reading - [Nylon Caster Wheel for Robot](https://at4electronics.com/product/nylon-caster-wheel-for-robot/): Nylon Caster Wheel for Robot - [Inductor 220uH 0.5watt](https://at4electronics.com/product/220uh-inductor/): Highlight Inductance: 220uH Power Rating: 0.5 Watt Tolerance: 10% Description: An axial inductor provides inductance for small, low-power, low-current electronics projects. It is very similar in form factor with a resistor, but is usually colored green. High quality color code inductor assortment kit and fixed Inductor. Specification: Inductance: 220uH Power Rating: 0.5 Watt Tolerance: 10% … Continue reading - [Inductor 10uH 0.5watt](https://at4electronics.com/product/10-uh-inductor/): Inductance:10uH Power: 1/2W Tolerance: +/-10% Body size: 4x8mm - [10 M Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/10-m-ohm-carbon-resistor-1-4w/): Fixed Carbon resistor 1/4 watt and 5%~10% tolerance. - [5 M Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/5-m-ohm-carbon-resistor-1-4w/): Fixed Carbon resistor 1/4 watt and 5%~10% tolerance. - [1 M Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/1-m-ohm-carbon-resistor-1-4w/): Fixed Carbon resistor 1/4 watt and 5%~10% tolerance. - [220 k Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/220-k-ohm-carbon-resistor-1-4w/): Fixed Carbon resistor 1/4 watt and 5%~10% tolerance. - [150 k Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/150-k-ohm-carbon-resistor-1-4w/): Fixed Carbon resistor 1/4 watt and 5%~10% tolerance. - 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[1.5k Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/1-5k-ohm-carbon-resistor-1-4w/) - [910 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/910-ohm-carbon-resistor-1-4w/) - [620 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/620-ohm-carbon-resistor-1-4w/) - [510 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/510-ohm-carbon-resistor-1-4w/) - [470 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/470-ohm-carbon-resistor-1-4w/) - [120 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/120-ohm-carbon-resistor-1-4w/) - [100 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/100-ohm-carbon-resistor-1-4w/) - [51 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/51-ohm-carbon-resistor-1-4w/) - [22 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/22-ohm-carbon-resistor-1-4w/) - [12 Ohm Carbon Resistor 1/4W](https://at4electronics.com/product/12-ohm-carbon-resistor-1-4w/) - [Micro Servo SG92R (Nylon Gear) 180 Degree](https://at4electronics.com/product/servo-motor-sg92r/): Product Description: Servo TowerPro SG-92R – micro Model Tower Pro SG-92R is one of the most powerful servos in the micro category. Unlike previous versions of (SG-90,SG-91) it has robust karbonite gears, thanks to which the torque reaches 2.5 kg (0,24 Nm) when the voltage is 4.8 V. Features :  High resolution Accurate positioning Fast control response Constant torque … Continue reading - [multimeter DT-830D](https://at4electronics.com/product/multimeter-dt-830d/): DT-830D Mini Digital Multimeter with Buzzer Voltage Ampere Meter Tester The multimeter enables measuring DC voltage up to 1000 V and AC voltage up to 750 V, DC current up to 10A and resistance up to 2 MΩ. The device has the function of testing transistors and diodes. Features:  3 1/2 digits, 7-segment, 0.5″high LCD … Continue reading - [Motor Mitsumi M25E-1-6L](https://at4electronics.com/product/motor-mitsumi-m25e-1-6l/): DC mini motor Voltage: 2-7 V rotation 2200 rpm current consumption max. 80mA Dimensions : 25 mm x 20 mm (D x H) - [Pin header female 4 Pins 2.54mm](https://at4electronics.com/product/pin-header-female-4pin/): pin header female 4pin 2.54mm - [Pin header female 3 Pins 2.54mm](https://at4electronics.com/product/pin-header-female-3pin/): 2.54mm 1×3 Pin Header Female Single Row Header Strip - [Yellow LED 0805 SMD](https://at4electronics.com/product/yellow-led-0805-smd/): The brightness is 60-120mcd, with wide view angle 120 degree. It is a popular product. It has small size, low light decay and long lifespan advantages and so on. The small size provides more possibilities for PCB design. We also can provide PCBA service for this led. Our factory has large capacity and guarantees high … Continue reading - [Blue LED 0805 SMD](https://at4electronics.com/product/blue-led-0805-smd/): The brightness is 60-120mcd, with wide view angle 120 degree. It is a popular product. It has small size, low light decay and long lifespan advantages and so on. The small size provides more possibilities for PCB design. We also can provide PCBA service for this led. Our factory has large capacity and guarantees high … Continue reading - [Red LED 0805 SMD](https://at4electronics.com/product/red-led-0805-smd/): The brightness is 60-120mcd, with wide view angle 120 degree. It is a popular product. It has small size, low light decay and long lifespan advantages and so on. The small size provides more possibilities for PCB design. We also can provide PCBA service for this led. Our factory has large capacity and guarantees high … Continue reading - [SMD Fuse Fast Blow 500mA 2410 6.1×2.69×2.69mm](https://at4electronics.com/product/smd-fuse-fast-blow-500ma-2410-50a-6-12-692-69mm/): Attribute Value Category Board Level Protection/Fuses Datasheet SMD Fuse 500mA RoHS Fuse Type FastBlow Breaking Capacity @ Rated Voltage 50A Product SMD Fuse Operating Temperature -55°C ~ 125°C Rated Voltage(DC) 125V Current Rating 500mA Melting I²t 0.0824 Rated Voltage(AC) 125V Nominal Cold Resistance 304.6mΩ - [SMD Fuse Holders 2410 C3133](https://at4electronics.com/product/smd-fuse-holders-2410-c3133/): Easy fuse replacement Miniature size RoHS compliant and Halogen Free Very Fast-Acting and Time-Lag options available Holder sized to fit a range of Nano2® type fuses Low fuse temperature de-rating Wide operating temperature range Heat-resistant fuseholder, UL94 V-0 • 260°C reflow capable fuseholder - [AMS1117-3.3V SMD Fixed 15V 3.3V 1.3V @ 800mA SOT-223 Dropout Regulators](https://at4electronics.com/product/ams1117-3-3v-smd-fixed-15v-3-3v-1-3v-800ma-sot-223-dropout-regulators/): Value Category Power Management ICs/Linear Voltage Regulators (LDO) Datasheet  Advanced Monolithic Systems AMS1117-3.3 RoHS Power Supply Rejection Ratio (PSRR) 72dB@(120Hz) Output Current 1A Dropout Voltage 1.3V@(800mA) Output Type Fixed Output Voltage 3.3V~3.3V Output Polarity Positive Number of Outputs 1 Maximum Input Voltage 15 - [Soldering Spring Antenna 433MHz 2dbi 0.6x5x28.8mm](https://at4electronics.com/product/soldering-spring-antenna-433mhz-2dbi-0-6x5x28-8mm/): Material: phosphorous copper Frequency range: 433Mhz Gain: 2.15dbi Input impedance: 50 ohms Max Power: 10W Antenna total size (bend antenna): H: 28mm x Dia: 5mm - [N35 Neodymium Disc Magnet 8x5mm](https://at4electronics.com/product/n35-neodymium-disc-magnet-8x5mm/): Small Neodymium disc magnets are extremely powerful and easy to conceal inside a commercial product design or a simple craft project. These relatively new, super strong magnetic products contain powerful rare earth material and have become increasingly popular with customers from amateurs to industry leaders in almost every field. Whether your business involves heavy duty … Continue reading - [Acrylic Case for Arduino UNO R3](https://at4electronics.com/product/acrylic-case-for-arduino-uno-r3/): a protective case designed for the popular Ardunio UNO R3 microcontroller board. Made of transparent acrylic, the enclosure provides full access to all of the board’s ports and connectors, while keeping it safe from dust, scratches, and accidental damage. The case is easy to assemble, with snap-together construction that requires no screws or tools. Its … Continue reading - [Ultrasonic Sensor Holder Mounting Bracket](https://at4electronics.com/product/holder-for-ultrasonic/): Description: Thickness :2.8-3 .1 mm Inner diameter: 16mm Fixing hole diameter: 3.8MM Material: imported acrylic Uses: fixed ultrasonic sensing module products; Note: This bracket only support Ultrasonic Module HC-SR04 , NOT support other type Ultrasonic module - [Adapter 5V 1A](https://at4electronics.com/product/adapter-5v-1a/): This is industry quality DC power adapter with 5V, 1A output. It has barrel jack connector. This adapter works well with many 5V applications. Specifications Input: 100-240V AC 50/60Hz Output : 5V, 1.0A Dimensions:80(L) x 45(W) x 30(H) mm Cable length: about 110CM Output adaptor : Barrel Jack Internal diameter of the plug: 2.1mm External … Continue reading - [Adapter 12V 1A](https://at4electronics.com/product/adapter-12v-1a/): This 12V 1A power adapter is useful for many applications, such as CCTV, security camera system and surveillance equipment, router. It also is a good replacement for the old or broken CCTV camera power adapter. Power Input: 100-240V AC, 50/60Hz Output: 12V 1A Power Output: 12V DC 1A Power Supply /  Adapter DC Male Connector … Continue reading - [Adapter 9V 1A](https://at4electronics.com/product/adapter-9v-1a/): This 9V 1A power adapter is useful for many applications, such as CCTV, security camera system and surveillance equipment, router. It also is a good replacement for the old or broken CCTV camera power adapter. Power Input: 100-240V AC, 50/60Hz Output: 9V 1A Power Output: 9V DC 1A Power Supply /  Adapter DC Male Connector … Continue reading - [steppr motor coupling 8*8](https://at4electronics.com/product/steppr-motor-coupling-88/): Shaft diameter d1 = 8 mm , d2 = 8 mm Material anodized aluminum Mass 35 g Rotational speed max. 8000 min -1 Max. torque 1 Nm Radial offset max. ± 0.3 mm Axial offset max. ± 0.5 mm Angle error max. ± 4 ° Torsion spring stiffness 18 Nm / rad Radial spring stiffness 50 … Continue reading - [Digital Sensor TTP223B Module Capacitive Touch Switch](https://at4electronics.com/product/touch-sensor-module/): The Digital Sensor TTP223B Module Capacitive Touch Switch is based on a touch-sensing IC (TTP223B) capacitive touch switch module. Allows you to remove the worry of conventional push-type keys. Digital Capacitive Touch Switch Module is based on TTP223B. Normally, it outputs low and keeps at low power state. When a touch is sensed on the circular … Continue reading - [DS18B20 External Waterproof Temperature Sensor for Sonoff Smart Home Module](https://at4electronics.com/product/ds18b20-external-waterproof-temperature-sensor/): Sonoff DS18B20 temperature probe The connectable Sonoff DS18B20 sensor is used to measure the temperature at the installation site. It is connected to the wifi module using a 2.5 mm jack connector. After connecting to the wifi module, it is controlled via an application on a smartphone. The measured temperature is then displayed on the … Continue reading - [IR Photoelectric Encoder Sensor 4Pin](https://at4electronics.com/product/ir-photoelectric-encoder-sensor-4pin/): The speed motion sensor utilize a groove IR optocoupler to sense for object between the IR emitter and IR receiver on-board. This methodology allow the module to count the number of obstruction in a given time frame. This characteristic made it very suitable for measuring the speed of rotation. The digital output is in LOW … Continue reading - [NTC Thermistor Temperature Sensor Module 3 Pin](https://at4electronics.com/product/temperature-sensor-module-3-pin/): NTC Thermistor temperature sensor module is low cost, small size module. It is very sensitive to ambient temperature. It is generally used to detect the temperature of the surrounding environment. Through potentiometer adjustment, it is possible to change the temperature detection threshold. DO output can be directly connected to the microcontroller to detect high and … Continue reading - [Temperature Sensor Module 4 Pin](https://at4electronics.com/product/temperature-sensor-module-4-pin/): Module with temperature sensor. For control, used is an analogue or digital output. It detects the temperature in the range from -55°C to 125°C. It is powered with the voltage of 5 V. Product description: Temperature sensor Module with temperature sensor. For control, used is an analogue or digital output. It detects the temperature in the … Continue reading - [TCRT5000 Tracking Line Follower Sensor](https://at4electronics.com/product/tcrt5000tracking-line-follower/): The TCRT5000 are reflective sensors, which include an infrared emitter and phototransistor in a leaded package, which blocks visible light. The package includes two mounting clips. The Arduino TCRT5000 is designed to sense the distance to an object using Infra Red light waves. It can also identify the difference between white and black based on … Continue reading - [Serial I2C LCD Daughter Board Module for LCD display](https://at4electronics.com/product/i2c-for-lcd-display/): Serial I2C LCD Daughter Board Module This is a RoHS compliant I2C Serial LCD Daughter board that can be connected to a standard HD44780compatible 16×2 or 20×4 Character Display Module that supports 4 bit mode. All Character Modules sold on our site support 4 bit mode, and nearly all commercially available 16×2 and 20×4 line … Continue reading - [Line Tracker (Finder) Sensor](https://at4electronics.com/product/line-tracker-finder-sensor/): This is high performance line finder that is designed for line following robotic. It consists two parts – an IR emitting LED and an IR sensitive phototransistor. It can output digital signal to a microcontroller so the robot can reliably follow a black line on a white background, or vice versa. The sensor is Arduino … Continue reading - [Digital Voltmeter Display Red LED 2 Wire (4.5-30VDC )](https://at4electronics.com/product/digital-voltmeter-display-red-led-2-wire-4-5-30vdc/): The wiring of this voltmeter is simple, only two wires need to be connected, the red wire is connected to the positive, and the black wire is connected to the negative. There is reverse connection protection in the meter, and the reverse connection does not burn. This voltmeter does not require an external working power … Continue reading - [Educational & Starter Electronics Kit](https://at4electronics.com/product/educational-starter-electronics-kit/): Package Included: 1 × 830 holes Breadboard 5 × 3 colors of LED lights(random) 10× Resistor 220ohm 10× Resistor 1K 10× Resistor 10K 10× Resistor 100K 2 × Photoresistor LDR 7mm 6 × Button(with the mixed color caps) 1 × 9V Battery + Connector 10 × jumper wires m-m 20cm - [Optical End Stop Switch Module](https://at4electronics.com/product/optical-end-stop-switch-module/): 3D Printer Optical End Stop Switch Module For RAMPS 1.4 With Cable Description: With high quality 22AWG cable line, the copper wire inside is thick. The cable line is not easy to pull off, convenient to plug, easy for use. Opto optical endstop switch for CNC 3D Printer RepRap Makerbot Prusa Mendel RAMPS End-stop. The … Continue reading - [Joystick Module x-y](https://at4electronics.com/product/joystick-module-x-y/): This is a joystick very similar to the ‘analog’ joysticks on PS2 (PlayStation 2) controllers. Directional movements are simply two potentiometers – one for each axis. Pots are ~10k each. This joystick also has a select button that is actuated when the joystick is pressed down. This is a Joystick module that has X,Y analog … Continue reading - [Solenoid Valve - Fluid Control](https://at4electronics.com/product/solenoid-valve-fluid-control/): Specifications Working voltage DC12V Maximum current 500 mA Operating Mode Normally Closed Inlet/Outlet Ports external diameter 3/4″(19mm) Materials Stainless Steel/Polyoxymethylene Filter Screen Stainless Steel Inlet Filter Temperature Limitations Maximum Fluid Temperature 120°C Pressure 0.00  – 0.01MPa This 3/4 inch electric solenoid valve powered by 12-Volt DC with Filters on inlet and outlet ports are great … Continue reading - [Thermoelectric Cooler (Peltier) TEC-12706 (40x40mm)](https://at4electronics.com/product/thermoelectric-cooler-peltier-tec-12706-40x40mm/): Rated voltage: 12v, rated current of 4.5A, probably 50–60W, the maximum temperature up to 60 degrees Celsius, the dimensions of 4 X 4 X 0.4Cm, weighing about 25 grams. Its work is characterized by one side and the cooling side of the heat. - [18650 Battery Case Holder 4 cells](https://at4electronics.com/product/18650-battery-case-holder-4-cells-3-7/): 18650 Battery Case Holder 4 cells - [18650 Battery Case Holder 3 cells](https://at4electronics.com/product/18650-battery-case-holder-3-cells/): 18650 Battery Case Holder 3 cells - [Voltage Sensor Module DC 0-25V – HD Version](https://at4electronics.com/product/voltage-sensor-module-dc-0-25v-hd-version/): 0-25V DC Voltage Sensor Module The voltage sensor module is a small size 0-25 DC voltage sensing device. The design of the module is based on a resistive voltage divider circuit. It is a voltage sensor module that reduces the input voltage signal by a factor of 5 and generates a corresponding analog output voltage … Continue reading - [Fuse Holders 500V~32A 10×38 RT18-32X](https://at4electronics.com/product/fuse-holders-500v32a-10x38-rt18-32x/): RT18-32X fuse holder accommodates 10×38 mm fuses, rated for 500V and 32A, designed for DIN rail mounting in industrial and power distribution applications. - [IRFP460 N-Channel Power MOSFET Transistor TO-247 (500V-0.27Ω-20A)](https://at4electronics.com/product/irfp460-n-channel-power-mosfet-transistor-to-247-500v-0-27%cf%89-20a/): IRFP460 N-Channel Power MOSFET Transistor TO-247 (500V-0.27Ω-20A) - [Tantalum Capacitors – Solid SMD 25V 10uF 10% CASE-B 1210 AVX](https://at4electronics.com/product/tantalum-capacitors-solid-smd-25v-10uf-10-case-b-1210-avx/): Tantalum Capacitors – Solid SMD 25V 10uF 10% CASE-B 1210 AVX - [SS8050 Y1 Bipolar Transistors – BJT SMD 25V 300mW 200@100mA,1V 1.5A NPN SOT-23](https://at4electronics.com/product/ss8050-y1-bipolar-transistors-bjt-smd-25v-300mw-200100ma1v-1-5a-npn-sot-23/): SS8050 Y1 Bipolar Transistors – BJT SMD 25V 300mW 200@100mA,1V 1.5A NPN SOT-23 - [AMS1117-3.3V SMD Fixed 12V 3.3V 800mA SOT-223 Dropout Regulators](https://at4electronics.com/product/ams1117-3-3v-smd-fixed-12v-3-3v-800ma-sot-223-dropout-regulators/): AMS1117-3.3V SMD Fixed 12V 3.3V 800mA SOT-223 Dropout Regulators - [Multilayer Ceramic SMD Capacitor MLCC SMD/SMT 100nF ±10% 50V X7R 0603](https://at4electronics.com/product/multilayer-ceramic-smd-capacitor-mlcc-smd-smt-100nf-%c2%b110-50v-x7r-0603/): - [Chip Resistor SMD 10kΩ ±1% 100mW ±100ppm/℃ 0603](https://at4electronics.com/product/chip-resistor-smd-10k%cf%89-%c2%b11-100mw-%c2%b1100ppm-%e2%84%83-0603/): Manufacturer FOJAN Mfr. Part # FRC0603F1002TS Package 0603 Datasheet FOJAN FRC0603F1002TS Description 100mW Thick Film Resistors ±100ppm/℃ ±1% 10000Ω 0603 Chip Resistor – Surface Mount ROHS Specifications Attribute Value Category Resistors/Chip Resistor – Surface Mount Datasheet  FOJAN FRC0603F1002TS RoHS Power(Watts) 100mW Type Thick Film Resistors Overload Voltage (Max) 75V Temperature Coefficient ±100ppm/℃ Tolerance ±1% Operating … Continue reading - [Chip Resistor SMD 1kΩ ±1 100mW ±100ppm/℃ 0603](https://at4electronics.com/product/chip-resistor-smd-1k%cf%89-%c2%b11-100mw-%c2%b1100ppm-%e2%84%83-0603/): Manufacturer FOJAN Mfr. Part # FRC0603F1001TS Package 0603 Datasheet FOJAN FRC0603F1001TS Description 100mW Thick Film Resistors ±100ppm/℃ ±1% 1000Ω 0603 Chip Resistor – Surface Mount ROHS Specifications Attribute Value Category Resistors/Chip Resistor – Surface Mount Datasheet  FOJAN FRC0603F1001TS RoHS Power(Watts) 100mW Type Thick Film Resistors Overload Voltage (Max) 75V Temperature Coefficient ±100ppm/℃ Tolerance ±1% Operating … Continue reading - [ADXL345 Digital Accelerometer 3 DOF I2C/SPI Module](https://at4electronics.com/product/adxl345-digital-accelerometer-3-dof-i2c-spi-module/): Unlock precise motion sensing with the ADXL345 3-axis accelerometer module. I2C/SPI interfaces make it easy to integrate with Arduino and Raspberry Pi for robotics and wearables. - [Copper Tape Roll – Electrical Conductive Tape (Width 20mm) 1meter](https://at4electronics.com/product/copper-tape-roll-20mm-10m/): Features: EMI shielding keeps electromagnetic wave away. For making computer peripherals and welding. No oxidation, anti-statics, anti-ultraviolet light, heat insulation, strong adsorption. Waterproof, cold and heat resist. Used for electric guitar, transformer, smart phone, PC, PDA, PDP and LCD, copier, etc. Specifications: Type: Single conductive copper foil Tape Material: CU 99.98% Adhesive Force: 1.5-1.5kg/25mm Temperature … Continue reading - [TP4056 TYPE-C Lithium Battery Charging Board Module 1A with Battery Protection](https://at4electronics.com/product/tp4056-type-c-lithium-battery-charging-board-module-1a-with-battery-protection/): Single-cell charger for lithium polymer batteries with a voltage of 3.7 V. The module is based on the TP4056 chip. The chip is powered via a USB Type C connector. The charger has built-in protection against discharging the battery below 2.5 V and against charging with too high a current exceeding 3 A. Pinouts The … Continue reading - [Stepper Motors Cable](https://at4electronics.com/product/stepper-motors-cable/) - [DC Power Jack Female Socket Connector 5.5×2.1mm](https://at4electronics.com/product/dc-power-jack-female-socket-connector-5-5x2-1mm/): 5.5×2.1mm female DC power jack connector for secure power connections in electronics and devices. Perfect for various power setups. - [PIC16F628A-I/SO 2KB 3V~5.5V PIC 224Byte 20MHz FLASH 16 SOIC-18-300mil Microcontroller SMD](https://at4electronics.com/product/pic16f628a-i-so-2kb-3v5-5v-pic-224byte-20mhz-flash-16-soic-18-300mil-microcontroller-smd/): PIC16F628A Pin Configuration Pin Number Pin Name Description 1 RA2/AN2/VREF Bidirectional I/O pin of port A bit 2 or Analog comparator input channel 2 or Analog Voltage Reference output 2 RA3/AN3/CMP1 Bidirectional I/O port or Analog comparator input or Comparator 1 output. 3 RA4/T0CKI/CMP2 Bidirectional I/O pin of port A bit 4 or timer 0 clock … Continue reading - [PCB Prototype Board Double Layer Vero Board (FR-4) - 7x9cm](https://at4electronics.com/product/pcb-prototype-board-double-layer-vero-board-fr-4-7x9cm/): Double-Sided FR4 Fiber Glass Dotted Veroboard Printed Circuit Board PCB Board with Copper Thickness 2oz, Total PCB thickness 16mm & Tolerance 10% Double-Sided. This board is Ink resistant. Suitable etchants are Ferric Chloride or Fine Etch crystals. Features: High-quality base material It has a thickness of the Solder resist layer. Copper clad made tolerant as … Continue reading - [PCB Prototype Board - Vero Board FR-2 - 9x14.5cm (Dotted)](https://at4electronics.com/product/pcb-prototype-board-vero-board-fr-2-9x14-5cm-dotted/): Vero Board FR-2 is a perforated PCB prototype board made from phenolic resin, ideal for quick and easy electronic circuit prototyping and testing. - [PCB Prototype Board - Vero Board FR-2 - 7x9cm (line)](https://at4electronics.com/product/pcb-prototype-board-vero-board-fr-2-7x9cm-line/): Vero Board FR-2 is a perforated PCB prototype board made from phenolic resin, ideal for quick and easy electronic circuit prototyping and testing. - [Breadboard ZY-204 1660 Point V2.0](https://at4electronics.com/product/breadboard-zy-204-1660-point-v2-0/): Reusable for fast building a prototype of an electronic circuit. Electronic Circuit Project Board Accept transistors, diodes, LEDS, resistors, capacitors, and virtually all types of components. Soldering is not required. Can modify or revise the circuits easily. Similar prototyping printed circuit boards. An invaluable tool for experimenting with circuit designs whether in the university lab. … Continue reading - [Current Sensor Module ACS712 5A](https://at4electronics.com/product/current-sensor-module-acs712-5a/): ACS712 5A Hall Current Sensor Module for Arduino/Raspberry-Pi/Robotics The 5 Amp Hall sensor provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switch-mode power supplies, and overcurrent fault … Continue reading - [Current Sensor Module ACS712 20A](https://at4electronics.com/product/current-sensor-module-acs712-20a/): ACS712 20A Hall Current Sensor Module for Arduino/Raspberry-Pi/Robotics The 20 Amp Hall sensor provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switchmode power supplies, and overcurrent fault protection. Features … Continue reading - [Laser Module Board HW-493](https://at4electronics.com/product/laser-module-board-hw-493/): The Laser Emitter Module incorporates a small red laser diode similar to what you find in a laser pen. KEY FEATURES OF LASER EMITTER MODULE: 650nm Red Output Brass construction with acrylic lens Built-in current limiting resistor 5V Operation You can use this laser emitter to torture your cat, put red dots on the ceiling … Continue reading - [Laser Cross RYS920 3-3.3V 650nm 9mm](https://at4electronics.com/product/laser-cross-rys920-3-3-3v-650nm-9mm/): Laser small copper head (red light) Transmitting power: 5mW Service life: more than 1000 hours Spot mode: Cross spot, continuous output Laser wavelength: 650nm Power: 50mW Voltage: 3V-3.3V Current: < 20mA Operating temperature: – 36 ℃ ~ 65 ℃ Storage temperature: – 36 ℃ ~ 65 ℃ - [Laser Line RYS920 3-3.3V 650nm 9mm](https://at4electronics.com/product/laser-line-rys920-3-3-3v-650nm-9mm/): Laser small copper head (red light) Transmitting power: 5mW Service life: more than 1000 hours Spot mode: Line spot, continuous output Laser wavelength: 650nm Power: 50mW Voltage: 3V-3.3V Current: < 20mA Operating temperature: – 36 ℃ ~ 65 ℃ Storage temperature: – 36 ℃ ~ 65 ℃ - [Laser Module Emitter – Red Cross Line](https://at4electronics.com/product/laser-module-emitter-red-cross-line/): Specification Output Power: Min 2.5mW, Typical 3.0mW, Max 5.0mW Working current: 3V-5V Working voltage: Min 2.3VDC, Typical 4.5VDC, Max 8.0VDC Wavelength: 650nm Working Temperature: Min -15°C, Typical 25°C, Max 35°C Storage Temperature: Min -20°C, Max +25°C Focused Dot width: <2mm spotting 3 meters away. Outline Dimension: 12mm(Diameter) x 35mm(Length) Outputs: wires with removed insulation with a length of 13 cm Practical test for point head: reflection visible to … Continue reading - [Hex Coupler For DC Geared Motor 4mm](https://at4electronics.com/product/hex-coupler-for-dc-geared-motor-4mm/): The hex coupler for Robot Wheel is a compact coupling for joining your motor to the wheel. They are mostly seen in smart cars, robotic vehicles, or small robots. Hex Coupling is made from high-quality brass which allows you to connect the shaft of the motor and hub of the wheel. It equips a hexagonal … Continue reading - [Mounting Bracket 25mm for GA25 DC Geared Motor](https://at4electronics.com/product/mounting-bracket-25mm-for-ga25-dc-geared-motor/): The Mounting Bracket 25mm for GA25 DC Geared Motor is a reliable and durable solution for securely mounting your motor in robotics, automation, and custom-built projects. Designed specifically for 25mm motors, this bracket ensures a snug fit and provides stable support during operation. Constructed from robust materials, it withstands heavy use while maintaining stability. The … Continue reading - [Plastic Propeller 4 Blades 56mm](https://at4electronics.com/product/plastic-propeller-4-blades-56mm/): This Four Blade 56mm generic fan/propeller works great for moving air or water. Use it to build your next miniature hovercraft, boat, or just to make your DC motor less boring! The propeller is designed to fit on a 2mm shaft  and will work with most small DC hobby motors we stock. Note: DC Motor Sold Separately … Continue reading - [DC Fan 12V (5x5cm)](https://at4electronics.com/product/dc-fan-12v-5x5cm/): Cooling Fan 12V Brushless DC Cool Fans 2 Wire 50*50*11mm Cooler Radiator 3D Printer Parts - [Electromagnet Solenoid Lock 5mm 12VDC 350mA](https://at4electronics.com/product/electromagnet-solenoid-lock-5mm-12vdc-350ma/): Does controlling door and cabinet access with the power of Electromagnetism interest you? Excellent! In effect, this latch/lock solenoid is an electronic lock. When powered with a 12VDC source, the latch is pulled in, allowing movement. Without power, the latch is extended, blocking movement and your secret drawer is safe and secure. This Solenoid Latch … Continue reading - [Motor Speed ​​Controller DC 3-35V PWM 5A 90W](https://at4electronics.com/product/motor-speed-controller-dc-3-35v-pwm-5a-90w/): DC 3-35V Motor Speed Controller PWM 5A 90W provides precise speed control for DC motors with adjustable settings, built-in protection, and wide voltage compatibility. - [Servo Tester](https://at4electronics.com/product/servo-tester/): Features : 3 modes of operation Manual position mode using adjustment knob Return to center Auto sweep back and forth Output connectors for up to 3 servos Can use as input for ESC to test operation 4.8-6V operation and output pulse amplitude Specifications: Input voltage: 4.8 V to 6 V Housing made of soft plastic … Continue reading - [Acrylic Servo Bracket for SG90 Servo](https://at4electronics.com/product/acrylic-servo-bracket-for-sg90-servo/): Description: 1. Can be used for the fixed use of the steering wheel of the car, very convenient 2. Acrylic 3mm material Servo bracket 3. M2X10 screws and two nuts are used to fix the SG90 servo on the steering gear bracket. 4. M3x8 screws and nuts for fixing on the chassis of the car. … Continue reading - [Micro Servo Continuous Rotation SG90 0:360 Degree](https://at4electronics.com/product/micro-servo-continuous-rotation-sg90-0360-degree/): Micro servo. Speed: 0.1 s/60°. Wait a minute: 1.8 kg.cm. Dimensions: 22 x 12 x 27 mm. Weight: 9 g. - [Mini vibration motor](https://at4electronics.com/product/mini-vibration-motor/): Mini vibration motors also called small coin vibration motors, are compact and convenient to use, with no external moving parts. Used in handheld instruments haptic. RCD1027 Coin Vibration Motors – 10 mm x 2.7 mm, 3 V, coin vibration motor for lightweight wearable devices. Only 10 mm in diameter, It was designed for devices requiring … Continue reading - [R140 DC Motor 3-9V 10000RPM](https://at4electronics.com/product/r140-dc-motor-3-9v-10000rpm/): Features: Advanced technology, fine specification of finished products, small tolerance, high bearing fit, and stable operation. The chassis is made of high-density steel tube, with strong internal magnetic force and large motor torque. The rotor is made of silicon steel, with a low finished current, large torque, and stable operation. All copper movement, cold rolled … Continue reading - [DC Motor with Gear Box JGA25-370-12V-210RPM 12Kg.cm](https://at4electronics.com/product/dc-motor-with-gear-box-jga25-370-12v-210rpm-12kg-cm/): This easy-to-mount JGA25-370 DC gearmotor is great for building robots and it comes in a variety of configurations that suit even the most exigent designs. This motor features a D-shaped output shaft. - [DC Motor With Gear Box JGA25-370-12V-300RPM 7.5Kg.cm](https://at4electronics.com/product/dc-motor-with-gear-box-jga25-370-12v-300rpm-7-5kg-cm/): This easy-to-mount JGA25-370 DC gearmotor is great for building robots, and it comes in a variety of configurations that suit even the most exigent designs.This motor features a D-shaped output shaft. - [CP2102 USB 2.0 to TTL UART Serial Converter Module 5 Pin](https://at4electronics.com/product/cp2102-usb-2-0-to-ttl-uart-serial-converter-module-5-pin/): This USB to TTL adapter is based on the CP2102 USB to TTL serial converter IC. It is commonly used when microcontrollers like Arduino, Raspberry Pi, PIC etc have to communicate with computers through serial communication. - [ST-LINK V2 Emulator and Debugger/Programmer for STM8 and STM32](https://at4electronics.com/product/st-link-v2-emulator-and-debugger-programmer-for-stm8-and-stm32/): ST-LINK V2 is a USB In-Circuit Programmer and Debugger for the STM8 and STM32 microcontroller families. - [USB to TTL UART Uploader Module CH340](https://at4electronics.com/product/usb-to-ttl-uart-uploader-module-ch340/): This is CH340G USB To TTL(Serial) Converter, USB to TTL / USB-TTL /STC microcontroller programmer / PL2303 in nine upgrades plate with a transparent cover Compatible with ARDUINO, RASPBERRY PI, AVR, PIC, 8051, etc. - [NRF24L01 Wireless Module With Antenna](https://at4electronics.com/product/nrf24l01-wireless-module-with-antenna/): NRF24L01 Wireless Module With Antenna is the latest in RF modules.This transceiver IC operates in the 2.4GHz band and has many new features. - [HX711 - Weighing Scale Analog-to- Digital Converter 24-bit](https://at4electronics.com/product/hx711-weighing-scale-analog-to-digital-converter-24-bit/): The HX711 uses a two wire interface (Clock and Data) for communication. Any microcontroller’s GPIO pins should work and numerous libraries have been written making it easy to read data from the HX711. The module communicates with the host computer through TTL 232. - [Character LCD 20×4](https://at4electronics.com/product/character-lcd-20x4/): Alphanumeric LCD display. It presents values in four lines, 20 characters in each. It is powered by 5 V. It is characterized by extremely simple operation and support for many microcontrollers. Characters are displayed on green or blue background. - [Power Supply 12V 2A](https://at4electronics.com/product/power-supply-12v-2a/): The 12V 2A Power Supply provides stable 12V DC output, ideal for powering electronics, LED lighting, and small appliances with safety protection features. - [Power Supply 5V 2A](https://at4electronics.com/product/power-supply-5v-2a/): The 5V 2A Power Supply delivers stable DC output with overload, overvoltage, and short circuit protection, ideal for LED lighting and electronics projects. - [Infrared Remote Control and Receiver](https://at4electronics.com/product/infrared-remote-control-and-receiver/): Mini Slim infrared remote control with 17 function keys, firing distances of up to 8 meters.IR receiver module can receive standard 38KHz . - [Load Cell 1kg – Straight Bar Weight Sensor](https://at4electronics.com/product/load-cell-1kg-straight-bar-weight-sensor/): This straight bar load cell 1kg (sometimes called a strain gauge) can translate up to 1KG of pressure (force) into an electrical signal, It is designed to measure a specific force, and ignore other forces being applied. The electrical signal output by the sensor is very small and requires a load cell amplifier such as … Continue reading - [Water Flow Sensor YF-S401](https://at4electronics.com/product/water-flow-sensor-yf-s401/): This simple flow sensor is very similar to its big brother, the YF-S201, but has been optimized for lower flow rates and features a higher pulse per liter count. Inside the housing, a small pinwheel with an attached magnet is spun by passing water; as the magnet makes each revolution, a hall effect sensor inside … Continue reading - [Photoelectric Encoder Infrared Counting Sensor Module](https://at4electronics.com/product/photoelectric-encoder-infrared-counting-sensor-module/): The Infrared Counting Sensor Module is used to count or detect objects that move through the U-shaped detector uprights. - [Heart Rate Monitor ECG AD8232](https://at4electronics.com/product/heart-rate-monitor-ecg-ad8232/): Ecg module AD8232 measurement pulse heart (ecg monitoring sensor) module kit. Kit includes: Sensor Cable – Electrode Pads (3 connector) Biomedical Sensor Pad (3 Pads) ECG Module AD8232 - [Temperature Control Switch Module W1209](https://at4electronics.com/product/temperature-control-switch-module-w1209/): The W1209 temperature control switch module offers reliable temperature regulation with adjustable settings, ideal for heating, cooling, and other temperature-dependent tasks. - [DC-DC Step-Up Power Converter Module XL6009 4A](https://at4electronics.com/product/dc-dc-step-up-power-converter-module-xl6009-4a/): 4A XL6009 DC-DC 50KHz Adjustable Step-up Power Converter Module This DC-DC switching boost converter is capable of driving a 4A load with excellent line and load regulation. The main switching component XL6009 IC is available in fixed output voltages of 3.3 V, 5V, 12V, and an adjustable output version. It is an efficient switching regulator and the output efficiency … Continue reading - [Real Time Clock Module (RTC)- DS1307](https://at4electronics.com/product/real-time-clock-module-rtc-ds1307/): Module with real time clock and backup battery (battery included). It allows you to read the time in hours, minutes, and seconds, date: month, day, year. It has 32 KB of EEPROM. The communication interface is an I2C bus(SDA and SCL), data update frequency is 1 Hz (1 second). It is the output of the … Continue reading - [Inductive Proximity Metal Sensor 4mm NPN Lj12A3-4-Z/BX](https://at4electronics.com/product/inductive-proximity-metal-sensor-4mm-npn-lj12a3-4-z-bx/): Description Metal Proximity Sensor, which is also called non-contact proximity switch, it is composed of generator and shaping amplifier oscillator vibration in the switch after induction head, and produces an alternating magnetic field when the metal body detected. This Inductive Proximity Sensor has high sensitivity, fast frequency response, high repeat positioning accuracy and also stability … Continue reading - [Aluminium Heatsink For TO-247 (38x34x12mm) (Black)](https://at4electronics.com/product/aluminium-heatsink-for-to-247-38x34x12mm-black/): The heat sink or heatsink is a device to move heat generated by electronics or mechanical devices to air or liquid coolant, - [Aluminium HeatSink For L298 25x24x16mm](https://at4electronics.com/product/aluminium-heatsink-for-l298-25x24x16mm/): The function of this Aluminum Heat Sink is to cool down the TO-220 package ICs and L298 IC and make it operate safely. The aluminium heat sink reduces the risk of hardware failure because of overheating. - [Aluminium Heatsink For TO-220 (20x15x10) mm](https://at4electronics.com/product/aluminium-heatsink-for-to-220-20x15x10-mm/): Compact and efficient aluminium heatsink (20x15x10 mm) for TO-220 package components, designed for effective heat dissipation and cooling. - [RGB LED Module](https://at4electronics.com/product/rgb-led-module/): The LED RGB 5mm Module incorporates a red, green, and blue LED with a clear lens in the same 5mm package and includes built-in current limiting resistors. - [Led Matrix 8×8 With MAX7219 Module](https://at4electronics.com/product/led-matrix-8x8-with-max7219-module/): Matrix module consisting of 64 LEDs arranged in an 8 x 8 square. The set consists of the board with built-in controller and martix as well as female-female wires. - [Arrow LED 5 Segment Display 30x44mm 1.5 Inch - Red](https://at4electronics.com/product/arrow-led-5-segment-display-30x44mm-1-5-inch-red/): Arrow LED 5 Segment Display 30x44mm 1.5 Inch - Red - [Single Digit 7-Segment Red Led Display Common Anode 2.3 inch](https://at4electronics.com/product/single-digit-7-segment-red-led-display-common-anode-2-3-inch/): Single-digit 7-segment LED display (2.3-inch, Common Anode) offers bright, high-visibility numeric output for industrial meters, clocks,  scoreboard displays. - [MQ-9 Carbon Monoxide, Combustible Gas Sensor Module](https://at4electronics.com/product/mq-9-carbon-monoxide-combustible-gas-sensor-module/): The sensors of the MQ series use a small heating element with an electronic-chemical sensor. They are sensitive to various gases and are suitable for the use in rooms. - [MQ-8 Hydrogen Gas Sensor Module](https://at4electronics.com/product/mq-8-hydrogen-gas-sensor-module/): MQ-8 is a Metal oxide semiconductor (MOS) type sensor from the series of MQ gas sensors (MQ-2, MQ-3, MQ-4, and so on). The module is highly sensitive to Hydrogen gas and can be used to detect any leaks or presence of Hydrogen gas in the air. - [Terminal PCB Male Flat 6.3mm](https://at4electronics.com/product/terminal-pcb-male-flat-6-3mm/): Terminal PCB Male Flat 6.3mm - [Barrier Terminal Block 2 Pin with Cover 300V/30A 9.5mm Pitch HB9500SS](https://at4electronics.com/product/barrier-terminal-block-2-pin-with-cover-300v-30a-9-5mm-pitch-hb9500ss/): 2-pin barrier terminal block with cover, rated 300V/30A, 9.5mm pitch for secure and reliable power connections. - [RV5.5-6 Insulated Ring Terminal](https://at4electronics.com/product/rv5-5-6-insulated-ring-terminal/): RV5.5-6 insulated ring terminals for 10-12 AWG wires, ideal for secure electrical connections to 6 mm studs - [PTV1.25-10 Insulated Pin Terminal](https://at4electronics.com/product/ptv1-25-10-insulated-pin-terminal/): PTV1.25-10 insulated pin terminals for 22-16  AWG (0.5-1.5 mm²) wires, offering secure connections with male pin connectors - [FDD5.5-250 Insulated Female Blade Crimp Terminal](https://at4electronics.com/product/fdd5-5-250-insulated-female-blade-crimp-terminal/): FDD5.5-250 insulated female crimp terminals ensure safe, reliable wiring for automotive and industrial applications - [SVS2-4 Insulated Fork Terminal](https://at4electronics.com/product/svs2-4-insulated-fork-terminal/): SVS2-4 insulated fork terminals for 16-14 AWG wires, offering secure 4 mm stud connections - [Dip Switch 3 Way](https://at4electronics.com/product/dip-switch-3-way/): It is a 2.54mm Pitch 3 Way DIP Slide Switch. - [Dip Switch 2 Way](https://at4electronics.com/product/dip-switch-2-way/): A 2-way DIP switch is a small manual switch used to select between two options or settings, often for configuring devices or circuits. - [Dip Switch 1Way](https://at4electronics.com/product/dip-switch-1way/): Compact 1-way DIP switch for manual circuit configuration, ideal for space-constrained electronic applications. - [Mini Push Button Switch 4-Pin (6x6x5)mm](https://at4electronics.com/product/mini-push-button-switch-4-pin-6x6x5mm/): Compact 6x6x5mm mini push button with 4 pins and momentary action, ideal for precise integration in space-constrained electronic applications. - [SPDT Micro Right Angle Limit Switch 125V 1A 3Pin](https://at4electronics.com/product/spdt-micro-right-angle-limit-switch-125v-1a-3pin/): SPDT Micro Right-Angle Limit Switch, 1A, 125V, 3-pin for precise position sensing and control in compact, low-voltage systems with space-saving design. - [SPDT Micro Limit Switch Roller Lever 5A 3 pins Dim:20*6mm](https://at4electronics.com/product/spdt-micro-limit-switch-roller-lever-5a-3-pins-dim206mm/): Compact SPDT micro limit switch with roller lever, 5A rating, and 3 pins. Ideal for precise control and activation in limited space - [Micro Limit Switch 5A 125~250V Arm 17mm Dim: 20x6mm](https://at4electronics.com/product/micro-limit-switch-5a-125250v-arm-17mm-dim-20x6mm/): Compact micro limit switch with 5A rating, suitable for 125-250V applications. Features a 17mm arm and a dimension of 20x6mm for precise control. - [ON/OFF Push Button Switch Self-Lock 2Pin 12mm DS428](https://at4electronics.com/product/on-off-push-button-switch-self-lock-2pin-12mm-ds428/): DS428 12mm ON/OFF self-locking push button switch with 2-pin design, ideal for power control in electronic circuits and DIY projects. - [ON/OFF Rocker Switch 3 Pins D:20mm](https://at4electronics.com/product/on-off-rocker-switch-3-pins-d20mm/): AC 6A/250V 10A/125V 3Pins Indicating Light ON/OFF - [Data Cable JST 2-Pin 2.54mm 30cm](https://at4electronics.com/product/data-cable-jst-2-pin-2-54mm-30cm/): The JST 2-Pin Data Cable (2.54mm, 30cm) is a compact, durable cable for connecting devices with 2-pin JST connectors, ideal for low-power electronics and projects. - [Data Terminal Male 2 Pin Connector JST XH 2.54mm](https://at4electronics.com/product/data-terminal-male-2-pin-connector-jst-xh-2-54mm/): Specifications Type of connector wire-board Connector socket Kind of connector male Connector series XH Contacts pitch 2.54mm Number of pins 2 Electrical mounting THT Rated voltage 250V Current rating 3A Operating temperature -25°C…+85°C Spatial orientation straight - [Pluggable Terminal Block 2 Pin 5.08mm Pitch KF2EDGR-5.08-2P (Right Angle Pin)](https://at4electronics.com/product/pluggable-terminal-block-2-pin-5-08mm-pitch-kf2edgr-5-08-2p-right-angle-pin/): 2-pin pluggable terminal block (5.08mm pitch) with right-angle pins, ideal for secure and easy wiring in electronics and industrial applications. - [KF127-5.0-3P Green Terminal Block 300V/10A 3 Pins 5mm Pitch](https://at4electronics.com/product/kf127-5-0-3p-green-terminal-block-300v-10a-3-pins-5mm-pitch/): The KF127-5.0-3P is a 3-pin, 5mm pitch terminal block rated 300V/10A, ideal for secure PCB wiring in power, control, and lighting applications. - [Jumper Shunt 2 Pin 2.54mm](https://at4electronics.com/product/jumper-shunt-2-pin-2-54mm/): The Jumper Shunt 2 Pin 2.54mm bridges two adjacent header pins for circuit configuration. It is reusable, easy to install, and compatible with standard 2.54mm headers. - [Jumper Wire 10 cm (Female To Female Pin)](https://at4electronics.com/product/jumper-wire-10-cm-female-to-female-pin/): 1x Wire 10 Cm “Female To Female Pins” - [Jumper Wire 10 cm (Male To Female Pin)](https://at4electronics.com/product/jumper-wire-10-cm-male-to-female-pin/): 1x Wire 10 Cm “Female To Male Pins” - [Jumper Wire 10 cm (Male To Male Pin)](https://at4electronics.com/product/jumper-wire-10-cm-male-to-male-pin/): 1x Wire 10 Cm “Male To Male Pins” - [Heat Shrink 5mm 1M – Black](https://at4electronics.com/product/heat-shrink-5mm-1m-black/): This heat shrink is a shrinkable plastic tube used to insulate wires - [Heat Shrink 12mm 1M](https://at4electronics.com/product/heat-shrink-12mm-1m/): This heat-shrink is a shrinkable plastic tube used to insulate wires. - [Heat Shrink 15mm 1M](https://at4electronics.com/product/heat-shrink-15mm-1m/): This is a Heat Shrink Tube of 15mm diameter at room temperature. - [Heat Shrink 18mm 1M – Black](https://at4electronics.com/product/heat-shrink-18mm-1m-black/): This heat-shrink is a shrinkable plastic tube used to insulate wires - [Heat Shrink 20mm 1M – Black](https://at4electronics.com/product/heat-shrink-20mm-1m-black/): This is a Heat Shrink Tube of 20mm diameter at room temperature. - [Spiral Silicon Cable Protector](https://at4electronics.com/product/spiral-silicon-cable-protector/): The cables easily damage when we pull, tangle, and store the cable in your bag. - [PCB Circuit Board Holder for Electronics Repair and Soldering](https://at4electronics.com/product/pcb-circuit-board-holder-for-electronics-repair-and-soldering/): This PCB holder is a universal repair tool for holding the small PCB board Metal material, high strength and durability Ideal repairing tool for circuit boarding-slip pads on the back universal - [Soldering Iron 220V 60W – V.802](https://at4electronics.com/product/soldering-iron-220v-60w-v-802/): Electric Soldering Iron V.802 60W 220V Lightweight Soldering Iron  - [Raspberry Pi Camera Board V1.3 (5MP, 1080p)](https://at4electronics.com/product/raspberry-pi-camera-board-v1-3-5mp-1080p/): Raspberry Pi Camera Board v1.3 (5MP, 1080p HD Video Recording at 30fps!) + 15cm Ribbon Cable - [Resistor (0.22 ohm , 5W)](https://at4electronics.com/product/resistor-0-22-ohm-5w/): Cement Power Resistors 5% tolerance - [Recording Voice Module ISD1820 + Speaker](https://at4electronics.com/product/recording-voice-module-isd1820-speaker/): ISD1820 is a small Voice Recorder and Playback module that can do the multi-segment recording. The user can achieve a high quality of recording (for 8 to 20secs) for each application with the adjustment of the on-board resistor. This Voice Recorder/Playback module is designed with embedded-Flash memory, which can hold data for up to 100 years and erase/record the life cycle up to 100,000. - [Current Sensor Module ACS712 30A](https://at4electronics.com/product/current-sensor-module-acs712-30a/): ACS712 30A Hall sensor provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems. - [ESP32-CAM OV2640 Camera V2.0](https://at4electronics.com/product/esp32-cam-ov2640-camera-v2-0/): ESP32-CAM Development Board Test Board WiFi+ Bluetooth Module ESP32 Serial Port with OV2640 Camera V2.0 - [Carbon Resistor 15KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-15k%cf%89-1w-through-hole/): Carbon Resistor 15KΩ 1W Through Hole provides stable resistance for a wide range of applications, ensuring reliable performance with a 1W power rating. - [Carbon Resistor 56Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-56%cf%89-1w-through-hole/): 56Ω 1W through-hole carbon film resistor with ±5% tolerance, ideal for voltage dividers and signal processing. - [Carbon Resistor 1Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-1%cf%89-1w-through-hole/): The Carbon Resistor 1Ω 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 27Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-27%cf%89-1w-through-hole/): The Carbon Resistor 27 Ω 1 W Through Hole is a durable carbon film resistor designed for moderate‑power applications in general electronic circuits. - [Carbon Resistor 10Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-10%cf%89-1w-through-hole/): 10Ω 1W carbon resistor with ±5% tolerance for circuit protection and current limiting. Ideal for DIY projects, power supplies, and industrial controls. - [Carbon Resistor 470Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-470%cf%89-1w-through-hole/): The Carbon Resistor 470Ω 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 33KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-33k%cf%89-1w-through-hole/): The Carbon Resistor 33KΩ 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 3.3KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-3-3k%cf%89-1w-through-hole/): The Carbon Resistor 3.3KΩ 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 1KΩ 2W Through Hole](https://at4electronics.com/product/carbon-resistor-1k%cf%89-2w-through-hole/): Carbon Resistor 1kΩ 2W Through Hole is a durable, high-quality resistor designed for high-power applications, providing stable performance in various circuits. - [Carbon Resistor 50Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-50%cf%89-1w-through-hole/): A durable 50Ω carbon resistor with ±5% tolerance and 1W power rating, ideal for current limiting and general-purpose electronic circuits. - [Carbon Resistor 220Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-220%cf%89-1w-through-hole/): The Carbon Resistor 220Ω 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 47Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-47%cf%89-1w-through-hole/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Carbon Resistor 220KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-220k%cf%89-1w-through-hole/): The Carbon Resistor 220KΩ 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 560Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-560%cf%89-1w-through-hole/): The Carbon Resistor 560Ω 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 10KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-10k%cf%89-1w-through-hole/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Carbon Resistor 33Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-33%cf%89-1w-through-hole/): The Carbon Resistor 33Ω 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 100Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-100%cf%89-1w-through-hole/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Carbon Resistor 22KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-22k%cf%89-1w-through-hole/): The Carbon Resistor 22KΩ 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 47KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-47k%cf%89-1w-through-hole/): The Carbon Resistor 47 kΩ 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 100KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-100k%cf%89-1w-through-hole/): The Carbon Resistor 100KΩ 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 470kΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-470k%cf%89-1w-through-hole/): The Carbon Resistor 470kΩ 1 W Through Hole is a high‑power carbon film resistor engineered for dependable resistance in general‑purpose electronic applications. - [Carbon Resistor 22Ω 1W Through Hole](https://at4electronics.com/product/carbon-resistor-22%cf%89-1w-through-hole/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Carbon Resistor 1KΩ 1W Through Hole](https://at4electronics.com/product/carbon-resistor-1k%cf%89-1w-through-hole/): 1KΩ (1000Ω) carbon resistor, 1W through-hole. Also searchable as 1K resistor, 1000 ohm resistor, مقاومة 1 كيلو، مقاومة 1000 أوم، ريزستور 1 كيلو. - [Power Resistor 7W 470Ω](https://at4electronics.com/product/power-resistor-7w-470%cf%89/): 7W 470Ω Cement Power Resistor: High-heat resistance, ±5% tolerance, and flame-retardant ceramic body. Ideal for power supplies and heavy-duty circuits. - [Power Resistor 0.22Ω 7W Through Hole](https://at4electronics.com/product/power-resistor-0-22%cf%89-7w-through-hole/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Wire Wound Chassis Mount Resistor 1kΩ 25W](https://at4electronics.com/product/wire-wound-chassis-mount-resistor-1k%cf%89-25w/): Aluminum housing for heat dissipation, suitable for cooling plate installation, can be used in harsh environment. Small size, high power load, standard and non-inductive winding types. High insulating capacity, good performance in vibration. Multiple connection modes, easy to install. - [Wire Wound Chassis Mount Resistor 470Ω 25W](https://at4electronics.com/product/wire-wound-chassis-mount-resistor-470%cf%89-25w/): Aluminum housing for heat dissipation, suitable for cooling plate installation, can be used in harsh environment. Small size, high power load, standard and non-inductive winding types. High insulating capacity, good performance in vibration. Multiple connection modes, easy to install. - [Power Resistor 7W 220ohm](https://at4electronics.com/product/power-resistor-7w-220ohm/): Durable 7W 220Ω power resistor, designed to handle high power loads with reliable performance for various electronic and electrical applications. - [Power Resistor 5W 10KΩ](https://at4electronics.com/product/power-resistor-5w-10k%cf%89/): 5W cement (ceramic) resistor 10 kΩ nominal; rugged, flame-retardant body for stable power dissipation, pulse tolerance and long load life. - [Power Resistor 0.22Ω 5W Through Hole](https://at4electronics.com/product/power-resistor-0-22%cf%89-5w-through-hole/): High-Power Resistor 0.22Ω 5W through-hole resistor for electronics, ±5% tolerance, wide temperature range. - [Power Resistor 20W 20Ω](https://at4electronics.com/product/power-resistor-20w-20%cf%89/): 20W 20Ω (±5%) ceramic cement power resistor with axial leads. Features a durable block body for high-power circuits and load testing. - [Wire Wound Resistor 8W 68Ω Through Hole](https://at4electronics.com/product/wire-wound-resistor-8w-68%cf%89-through-hole/): High-power 68Ω wire Wound Resistor 8W commonly used for current limiting, load testing, voltage dropping, and power dissipation in electronic circuits. - [Power Resistor 20W 27Ω](https://at4electronics.com/product/power-resistor-20w-27%cf%89/): The Power Resistor 20W 27Ω is a reliable axial wire wound cement resistor rated at 20W with 27Ω resistance and ±5% tolerance. - [Power Resistor 20W 10Ω](https://at4electronics.com/product/power-resistor-20w-10%cf%89/): 20W 10Ω wire‑wound cement power resistor for high‑power applications with ±5 % tolerance. - [Power Resistor 5W 18kΩ](https://at4electronics.com/product/power-resistor-5w-18k%cf%89/): Durable 5W 18kΩ ceramic cement resistor. Features ±5% tolerance and heat-resistant casing. Ideal for high-power loads, power supplies, and industrial apps. - [Power Resistor 7W 82Ω](https://at4electronics.com/product/power-resistor-7w-82%cf%89/): Power Resistor High-power wirewound resistor commonly used for current limiting, load balancing, and power dissipation in power electronics circuits. - [Power Resistor 20W 1Ω](https://at4electronics.com/product/power-resistor-20w-1%cf%89/): Power Resistor 20W 1Ω is a robust component designed for electronics projects needing significant power dissipation and low resistance. - [Power Resistor 100Ω 5W Through Hole](https://at4electronics.com/product/power-resistor-100%cf%89-5w-through-hole/): High ceramic power resistor with 100Ω resistance and 5W power rating, ideal for electronics projects requiring stable performance under load. - [Power Resistor 47Ω 5W Through Hole](https://at4electronics.com/product/power-resistor-47%cf%89-5w-through-hole/): Power Resistor 47Ω 5W Through Hole for high-power dissipation, current limiting, and voltage division in electronic circuits, designed for reliable, long-term performance. - [Power Resistor 10Ω 5W Through Hole](https://at4electronics.com/product/power-resistor-10%cf%89-5w-through-hole/): In general the Cement / Ceramic Resistor is a robust electronic component designed for applications requiring a low resistance value and the ability to dissipate higher power. - [Wire Wound Chassis Mount Resistor 220kΩ 50W](https://at4electronics.com/product/wire-wound-chassis-mount-resistor-220k%cf%89-50w/): Aluminum housing for heat dissipation, suitable for cooling plate installation, can be used in harsh environment. Small size, high power load, standard and non-inductive winding types. High insulating capacity, good performance in vibration. Multiple connection modes, easy to install. - [Wire Wound Chassis Mount Resistor 10kΩ 25W](https://at4electronics.com/product/wire-wound-chassis-mount-resistor-10k%cf%89-25w/): 10kΩ 25W aluminium-housed wire-wound chassis-mount resistor for heatsink installation and high-power applications. - [Wire Wound Chassis Mount Resistor 330Ω 50W](https://at4electronics.com/product/wire-wound-chassis-mount-resistor-330%cf%89-50w/): Aluminum housing for heat dissipation, suitable for cooling plate installation, can be used in harsh environment. Small size, high power load, standard and non-inductive winding types. High insulating capacity, good performance in vibration. Multiple connection modes, easy to install. - [Wire Wound Chassis Mount Resistor 10kΩ 50W](https://at4electronics.com/product/wire-wound-chassis-mount-resistor-10k%cf%89-50w/): Aluminum housing for heat dissipation, suitable for cooling plate installation, can be used in harsh environment. Small size, high power load, standard and non-inductive winding types. High insulating capacity, good performance in vibration. Multiple connection modes, easy to install. - [Wire Wound Chassis Mount Resistor 22Ω 25W](https://at4electronics.com/product/wire-wound-chassis-mount-resistor-22%cf%89-25w/): 22Ω 25W aluminium-housed wire-wound chassis-mount resistor for heatsink installation and high-power applications. - [Wire Wound Chassis Mount Resistor 470Ω 50W](https://at4electronics.com/product/wire-wound-chassis-mount-resistor-470%cf%89-50w/): Aluminum housing for heat dissipation, suitable for cooling plate installation, can be used in harsh environment. Small size, high power load, standard and non-inductive winding types. High insulating capacity, good performance in vibration. Multiple connection modes, easy to install. - [WH06-2C-502 Trimmer Potentiometer Preset 5KΩ](https://at4electronics.com/product/wh06-2c-502-trimmer-potentiometer-preset-5k%cf%89/): WH06-2C-502 Trimmer Potentiometer Preset 5KΩ for precise resistance adjustment in electronics, ideal for audio, voltage regulators, and DIY circuit projects. - [WH06-2C-102 Trimmer Potentiometer Preset 1KΩ](https://at4electronics.com/product/wh06-2c-102-trimmer-potentiometer-preset-1k%cf%89/): WH06-2C-102 Trimmer Potentiometer Preset 1KΩ for precise resistance adjustment in electronics, ideal for audio, voltage regulators, and DIY circuit projects. - [Metal Potentiometer 20K Ohm 3-Pin](https://at4electronics.com/product/metal-potentiometer-20k-ohm-3-pin/): Metal Potentiometer 20K Ohm 3-Pin is a robust linear taper rotary variable resistor with a knurled metal shaft, offering precise resistance adjustment from 0 to 20kΩ. - [Trimmer Potentiometer 3386P-1-503 50kOhm 0.5W 3 Pins Through Hole](https://at4electronics.com/product/trimmer-potentiometer-3386p-1-503-50kohm-0-5w-3-pins-through-hole/): Trimmer Potentiometer - [3296W-1-504 Trimmer Potentiometer Multi Turn 500KΩ 0.5W 3 Pins Through Hole](https://at4electronics.com/product/3296w-1-504-trimmer-potentiometer-multi-turn-500k%cf%89-0-5w-3-pins-through-hole/): Adjustable 500KΩ multi-turn trimmer potentiometer with 3 pins, ideal for precise voltage control in electronic circuits. 0.5W power rating, through-hole design. - [3296W-1-502 Trimmer Potentiometer Multi Turn 5KΩ 0.5W 3 Pins Through Hole](https://at4electronics.com/product/3296w-1-502-trimmer-potentiometer-multi-turn-5k%cf%89-0-5w-3-pins-through-hole/): 3296W-1-502 Precision multi-turn trimmer potentiometer used for accurate resistance adjustment, voltage calibration, and signal tuning in electronic circuits. - [Dual Metal Potentiometer 50K Ohm 6-Pin](https://at4electronics.com/product/dual-metal-potentiometer-50k-ohm-6-pin/): High-quality 50K ohm dual-gang potentiometer with 6 pins, ideal for simultaneous control in audio and electronic applications. - [3296W-1-105 Trimmer Potentiometer Multi Turn 1MΩ 0.5W 3 Pins Through Hole](https://at4electronics.com/product/3296w-1-105-trimmer-potentiometer-multi-turn-1m%cf%89-0-5w-3-pins-through-hole/): 1MΩ multi-turn trimmer potentiometer, 0.5W, 3-pin through-hole PCB mount, with 25-turn adjustment and 10% tolerance. - [3296W-1-104 Trimmer Potentiometer Multiturn 100KΩ 0.5W 3 Pin Through hole](https://at4electronics.com/product/3296w-1-104-trimmer-potentiometer-multiturn-100k%cf%89-0-5w-3-pin-through-hole/): 3296W-1-104 Precision multi-turn trimmer potentiometer used for accurate voltage adjustment, resistance calibration, and signal tuning in electronic circuits. - [WH06-2C-103 Trimmer Potentiometer Preset 10kΩ](https://at4electronics.com/product/wh06-2c-103-trimmer-potentiometer-preset-10k%cf%89/): WH06-2C-103 Trimmer Potentiometer Preset 10kΩ for precise resistance adjustment in electronics, ideal for audio, voltage regulators, and DIY circuit projects. - [Trimmer Potentiometer PT10L-V10 10mm 470KΩ 3 Pins Through Hole](https://at4electronics.com/product/trimmer-potentiometer-pt10l-v10-10mm-470k%cf%89-3-pins-through-hole/): The Trimmer Potentiometer PT10L-V10 10mm 470KΩ 3 Pins Through Hole offers precise single-turn adjustments in a compact design. - [Trimmer Potentiometer 3386P-1-102 1kOhm 0.5W 3 Pins Through Hole](https://at4electronics.com/product/trimmer-potentiometer-3386p-1-102-1kohm-0-5w-3-pins-through-hole/): Trimmer Potentiometer - [Trimmer Potentiometer 3386P-1-204 200kOhm 0.5W 3 Pins Through Hole](https://at4electronics.com/product/trimmer-potentiometer-3386p-1-204-200kohm-0-5w-3-pins-through-hole/): Trimmer Potentiometer - [Trimmer Potentiometer Multi Turn 3296W-1-101 100Ω 0.5W 3 Pins Through Hole](https://at4electronics.com/product/trimmer-potentiometer-multi-turn-3296w-1-101-100%cf%89-0-5w-3-pins-through-hole/): Trimmer Potentiometer Multi-Turn 3296W-1-101 100Ω 0.5W 3 Pins Through Hole. Precision adjustable resistor for fine-tuning applications. - [Trimmer Potentiometer 3386P-1-502 5kOhm 0.5W 3 Pins Through Hole](https://at4electronics.com/product/trimmer-potentiometer-3386p-1-502-5kohm-0-5w-3-pins-through-hole/): Precision 5kOhm trimmer potentiometer with a 0.5W power rating and through-hole 3-pin construction for reliable voltage adjustment. - [Linear Slide Potentiometer 20KΩ Travel Distance 20mm](https://at4electronics.com/product/linear-slide-potentiometer-20k%cf%89-travel-distance-20mm/): Compact PCB-mount linear slide potentiometer 20kΩ linear taper and 20mm travel — smooth, precise slider for audio controls, calibration and position sensing. - [3296W-1-503 Trimmer Potentiometer Multi turn 50KΩ 0.5W 3 Pins Through hole](https://at4electronics.com/product/3296w-1-503-trimmer-potentiometer-multi-turn-50k%cf%89-0-5w-3-pins-through-hole/): 3296W-1-503 Multi-turn precision trimmer potentiometer commonly used for voltage adjustment, calibration, and signal tuning in electronic circuits. - [WH06-2C-473 Trimmer Potentiometer Preset 47kΩ](https://at4electronics.com/product/wh06-2c-473-trimmer-potentiometer-preset-47k%cf%89/): WH06-2C-473 Trimmer Potentiometer Preset 47kΩ for precise resistance adjustment in electronics, ideal for audio, voltage regulators, and DIY circuit projects. - [3296W-1-202 Trimmer Potentiometer Multi Turn 2KΩ 0.5W 3 Pins Through Hole](https://at4electronics.com/product/3296w-1-202-trimmer-potentiometer-multi-turn-2k%cf%89-0-5w-3-pins-through-hole/): 3296W-1-202 Precision multi-turn trimmer potentiometer used for accurate resistance adjustment, calibration, and voltage tuning in electronic circuits. - [3296W-1-102 Trimmer Potentiometer Multi Turn 1KΩ 0.5W 3 Pins Through Hole](https://at4electronics.com/product/3296w-1-102-trimmer-potentiometer-multi-turn-1k%cf%89-0-5w-3-pins-through-hole/): The 3296W-1-102 is a 1kΩ multi-turn trimmer potentiometer with 3 pins , rated for 0.5W , and designed for precise adjustment in electronic circuits, through-hole mounting. - [Precision Potentiometer 3590S-2-103L – 10KΩ 10 Turn](https://at4electronics.com/product/precision-potentiometer-3590s-2-103l-10k%cf%89-10-turn/): 10K Ohm precision 10-turn potentiometer (3590S-2-103L) is widely used to adjust timer, speed, temperature in all kinds of equipment. - [Round Pin Headers Female 2.54mm : 40-Pin, Straight, Black, 7.5mm](https://at4electronics.com/product/round-pin-headers-female-2-54mm-40-pin-straight-black-7-5mm/): 40-Pin Machined Female Header (2.54mm). High-reliability round contacts for precise PCB connections. 7.5mm height, straight, snappable, and durable black housing. - [IC Socket (9+9)- Base 18 Pin](https://at4electronics.com/product/ic-socket-99-base-18-pin/): This is a 18 pin IC Base (DIP Socket) with pins spaced at (2.54 mm) . Use this IC base for easily plugging in and out ICs during prototyping. Also use this IC base to protect IC from damage due to heat while soldering by first soldering the base to the board and then plugging in the IC later. IC bases are also useful if you want to reuse ICs without the need to desolder them each time. - [Solar Cell 5V 80mA 80mmx45mm](https://at4electronics.com/product/solar-cell-5v-80ma-80mmx45mm/): Compact 5V 80mA solar cell 80mmx45mm powers DIY projects, small electronics, and educational experiments with renewable energy. - [Ceramic Capacitor 10pF 500V](https://at4electronics.com/product/ceramic-capacitor-10pf-500v/): This Through Hole Mount (DIP) Multilayer Ceramic Capacitor is made of ceramic dielectric in which a number of interleaved metal electrodes are contained. It is very low cost and used mostly for reducing the noise or filtering on data lines, power lines, etc. - [Aluminium Heatsink 16x14x9mm](https://at4electronics.com/product/aluminium-heatsink-16x14x9mm/): Compact aluminium heatsink, 16x14x9mm, designed for efficient cooling of small electronic components in space-limited devices and circuit boards. - [Rechargeable 18650 Li-ion Battery 3.7V 1500mAh (New)](https://at4electronics.com/product/rechargeable-18650-li-ion-battery-3-7v-1500mah-new/): The 18650 Rechargeable Li-ion Battery 3.7V 1500mAh is ideal for flashlights, toys, DIY projects, and portable devices, offering reliable and reusable power. - [TB6612FNG Motor Driver Module 2 Channel HW-166](https://at4electronics.com/product/tb6612fng-motor-driver-module-2-channel-hw-166/): Drive your projects forward with precision motor control. Efficient, compact, and easy to integrate. Ideal for robotics, automation, and creative DIY builds. - [Lithium Battery Charger Protection Module (BMS) 3S 20A 12.6V](https://at4electronics.com/product/lithium-battery-charger-protection-module-bms-3s-20a-12-6v/): This BMS ensures safe and efficient management of 3-cell lithium-ion battery packs, offering robust protection against overcharge, over-discharge. - [ZB2L3 18650 Lithium Battery Capacity Tester Module](https://at4electronics.com/product/zb2l3-18650-lithium-battery-capacity-tester-module/): The ZB2L3 18650 Lithium Battery Capacity Tester Module is a vital tool for testing 18650 Li-ion batteries, offering accurate measurements of capacity, voltage, and overall health. It supports a voltage range of 1.2V to 12V and features external load discharge capabilities to simulate real-world usage. - [Tinned Iron Jumper Wire (50 PCS)-10mm](https://at4electronics.com/product/tinned-iron-jumper-wire-50-pcs-10mm/): The Tinned Iron Jumper Wire set is commonly used for bridging connections on PCBs, circuit modification, and repairing broken tracks in electronic boards. - [Tinned Iron Jumper Wire (50 PCS)-14mm](https://at4electronics.com/product/tinned-iron-jumper-wire-50-pcs-14mm/): The Tinned Iron Jumper Wire set is commonly used for bridging connections on PCBs, circuit modification, and repairing broken tracks in electronic boards. - [Tinned Iron Jumper Wire (50 PCS)-16mm](https://at4electronics.com/product/tinned-iron-jumper-wire-50-pcs-16mm/): The Tinned Iron Jumper Wire set is commonly used for bridging connections on PCBs, circuit modification, and repairing broken tracks in electronic boards. - [PCB Board Fiber (20X20 ) CM](https://at4electronics.com/product/pcb-board-fiber-20x20-cm/): FR4 fiberglass PCB board offers strength, insulation, flame resistance, and durability, making it the trusted foundation for reliable electronic circuits. - [PCB Board Fiber (7X10 ) CM](https://at4electronics.com/product/pcb-board-fiber-7x10-cm/): FR4 fiberglass PCB board offers strength, insulation, flame resistance, and durability, making it the trusted foundation for reliable electronic circuits. - [Thermal PCB Transfer Glossy Paper for Laser Printers](https://at4electronics.com/product/thermal-pcb-transfer-glossy-paper-for-laser-printers/): Glossy PCB toner transfer paper for laser printers, ideal for high-precision DIY PCB fabrication with clean release and sharp trace transfer. - [Adapter 12V 2A with Dual Jack](https://at4electronics.com/product/adapter-12v-2a-with-dual-jack/): The 12V 2A Adapter with Dual Jack offers simultaneous power to two devices, featuring universal compatibility and built-in safety protections.​ - [Adapter 5V 2A with Dual Jack](https://at4electronics.com/product/adapter-5v-2a-with-dual-jack/): This 5V 2A power adapter features dual DC output jacks, providing a stable 5V DC output to power two devices simultaneously, ideal for various electronic applications. - [82D05 5V Digital Power Channel Amplifier Bluetooth Speaker Module](https://at4electronics.com/product/82d05-5v-digital-power-channel-amplifier-bluetooth-speaker-module/): 82D05 5V Digital Power Channel Amplifier Bluetooth Speaker Module is a compact, efficient audio solution designed for seamless wireless connectivity and high-quality stereo sound. - [WiFi ESP8266-12-F Serial TTL Module](https://at4electronics.com/product/wifi-esp8266-12-f-serial-ttl-module/): The ESP8266-12F is a WiFi module with serial TTL interface, featuring enhanced range and stability for IoT, smart home, and wireless embedded applications. - [Soldering Wire 0.6mm 250g Alloy:60/40 Made in Japan](https://at4electronics.com/product/soldering-wire-0-6mm-250g-alloy60-40-made-in-japan/): High-quality 0.6mm 60/40 soldering wire, 250g, Made in Japan. Smooth flow, strong joints, perfect for electronics and fine soldering work. - [Stainless Steel Curved Tweezer TS-15](https://at4electronics.com/product/stainless-steel-curved-tweezer-ts-15/): Stainless steel TS-15 curved tweezer (45° tip), anti-magnetic, corrosion-resistant, 105 mm long ideal for precision electronics and lab work. - [PCB Etching Solution 125mL](https://at4electronics.com/product/pcb-etching-solution-125ml/): Efficient 125mL PCB etching solution for precise, fast circuit creation in DIY projects and professional PCB prototyping. - [Solar Panel 9V 5W 330mmX175mmX17mm](https://at4electronics.com/product/solar-panel-9v-5w-330mmx175mmx17mm/): 9V 5W Solar Panel offers efficient, renewable power for charging small devices, outdoor use, and DIY solar projects with a compact and durable design. - [Capacitor 33uF 50V](https://at4electronics.com/product/capacitor-33uf-50v/): High-quality miniaturized capacitors utilize case sizes smaller than conventional general-purpose caps while maintaining very high performance, low impedance characteristics, 20% tolerance, and an operating temperature of -40° to +105°C. Widely used in electronics, such as robotics, computer motherboards, TVs, speakers, digital cameras, etc - [Speaker 8Ω 0.25W (Diameter 29mm)](https://at4electronics.com/product/speaker-8%cf%89-0-25w-diameter-29mm/): This is a simple speaker of a resistance of 8 Ohm and a power rating of 0.25 W. Use it in all your projects requiring an audio output. This speaker has a diameter of 9 mm and a height of 29 mm. A small audio speaker that is ideal for radio and amplifier projects and is small enough to fit in robot projects - [Solar Cell 5.5V 220mA 110mmx80mm With LED indicator](https://at4electronics.com/product/solar-cell-5-5v-220ma-110mmx80mm-with-led-indicator/):  Solar cell 5.5V 220m 110mmx80mm With LED indicator powers DIY projects, IoT devices, and educational experiments with efficient renewable energy. - [SIM800L GSM / GPRS Module and External Antenna](https://at4electronics.com/product/sim800l-gsm-gprs-module-and-external-antenna/): The SIM800L is a miniature, quad-band GSM/GPRS module that allows you to add cellular connectivity to your electronic projects. It enables your device to connect to any global 2G GSM network to send and receive GPRS data, send and receive SMS messages, and make and receive voice calls. - [IRLR7843 - N-channel power MOSFETs (IRLR7843TRPBF)](https://at4electronics.com/product/irlr7843-n-channel-power-mosfets-irlr7843trpbf/): N-Channel 30 V 161A (Tc) 140W (Tc) Surface Mount TO-252AA (DPAK) - [Suppression Capacitor 10nF 275V 15mm Through Hole](https://at4electronics.com/product/suppression-capacitor-10nf-275v-15mm-through-hole/): A 10nF, 275V suppression capacitor with a 15mm lead spacing, designed for EMI filtering and transient suppression in AC circuits. Through-hole mounting. - [Ceramic Cartridge Fuse 10*38mm 500VAC 50KA _20A](https://at4electronics.com/product/ceramic-cartridge-fuse-1038mm-500vac-50ka-_20a/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Ceramic Cartridge Fuse 10*38mm 500VAC 50KA _16A](https://at4electronics.com/product/ceramic-cartridge-fuse-1038mm-500vac-50ka-_16a/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] - [Capacitor 10000uF 25V 35mm x 30mm Short Pin](https://at4electronics.com/product/capacitor-10000uf-25v-35mm-x-30mm-short-pin/): Capacitor 10000uF, 25 V electrolytic capacitor in compact 35 mm × 30 mm package with short radial leads—ideal for power filtering and energy storage - [Capacitor 2200uF 35V](https://at4electronics.com/product/capacitor-2200uf-35v/): All Products 600 items 7- segment display 7 items Accessories & USB Host & Converters &Adapters 15 items Shop 0 items Audio & Sound 2 items Boxes 2 items Batteries & Clips & Holders 27 items Bread Boards &PCB 19 items Buzzers 3 items Capacitors 27 items Crystal Oscillators 5 items Diodes&Bridge Rectifiers 7 items Heat Shrink&Heat Sink 14 items Key Pads 1 items Kits 1 items IC Sockets 7 items Inductors & Fuses 14 items Integrated Circuits (ICs) 36 items LCD Modules 5 items LED 20 items Magnets 1 items MOTORS &Robotics Accessories& DRIVERS & WHEELS 46 items Opto Couplers […] ## Optional - [Agent (MCP protocol)](websites-agents.hostinger.com/at4electronics.com/mcp) [comment]: # (Generated by Hostinger Tools Plugin)