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940nm IR Infrared and Receiver LED
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$1.20
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A matched pair of 5mm infrared LEDs — one transmitter (clear) and one receiver (black) — operating at 940nm. Use them to build object sensors, colour sensors...
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A matched pair of 5mm infrared LEDs — one transmitter (clear) and one receiver (black) — operating at 940nm. Use them to build object sensors, colour sensors, line sensors, distance sensors, and custom wheel encoders.
Specifications
- Size – 5mm
- Lead Length – 37mm
- Wavelength – 940nm (infrared)
- Forward Voltage – 1.2–1.4V
- Forward Current – 100mA
- Transmit/Receive Distance – approximately 7–8m
- Lens Colour – Clear (transmitter), Black (receiver)
Ideal For
- Object detection and proximity sensing
- Line-following robots
- Wheel encoders and speed sensors
- IR communication and remote control projects
Package Contents
- 1× 940nm IR Transmitter LED (clear)
- 1× 940nm IR Receiver LED (black)
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- wavelength
- The distance between repeating peaks of a wave, often used to describe the colour of light in nanometres. For visible lasers and LEDs, wavelength tells you the approximate colour, such as red, green or blue.
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