5mm 940nm Infrared Emitted LED IR Diode LED

The 5mm 940nm Infrared Emitted LED is a 5 mm through-hole IR emitter that gives out invisible infrared light at a wavelength of 940 nm. It is the standard LED for TV-style remote controls and, paired with an IR receiver, photodiode or phototransistor, for beam-break and obstacle sensors in Arduino and ESP32 projects.

5mm 940nm Infrared Emitted LED Specifications

• Type: infrared emitting diode (IR LED)
• Wavelength: 940 nm, invisible to the eye
• Size: 5 mm round
• Mounting: through-hole, 2 legs
• Typical forward voltage: about 1.2 V to 1.5 V
• Typical current: 20 mA

5mm 940nm Infrared Emitted LED Applications

• IR remote control transmitters, for example with the Arduino IRremote library
• Beam-break counters and alarms
• Obstacle and line sensors together with a photodiode or phototransistor
• Short-range IR lighting for IR-sensitive cameras
• STEM and electronics classes

What's in the Box

• 1 × 5 mm 940 nm infrared LED

Tip: Infrared light is invisible, but many phone cameras (often the front camera) can see it, so point the LED at the camera to check that it works. At 5 V, a series resistor of about 180 Ω to 220 Ω gives roughly 20 mA; the longer leg is the anode (+).

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.