IR Infrared Transmitter LED 5mm

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Detail Description

The 5mm IR Infrared Transmitter LED is a compact, high-efficiency LED designed to emit infrared light, typically for use in remote control systems, communication devices, or sensor applications. With a narrow beam angle and operating wavelength around 940nm, this LED is ideal for creating invisible light signals that can be detected by compatible IR receivers. It is commonly used in DIY projects, robotic systems, and consumer electronics like TVs, air conditioners, and other IR-controlled devices.

How It Works:
The IR LED emits infrared light when current flows through it, which is invisible to the human eye but can be detected by IR receivers, cameras, and photodiodes. When controlled by a microcontroller (e.g., Arduino, ESP32), it can be used to send coded signals (like in a remote control) or transmit data over short distances. The emitted infrared light is modulated (turned on and off) to encode information in the signal.

Specifications:

LED Type: 5mm IR Infrared LED
Wavelength: 940nm
Angle: Narrow beam (approx. 20-30°)
Forward Voltage: 1.2V – 1.4V
Forward Current: 20mA (typical)
Power: 50mW
Maximum Radiant Intensity: 5-10mW/sr
Package: 5mm (standard LED size)

Limitations:

The transmission distance depends on the current driving the LED and the sensitivity of the receiver. Typically effective within a range of 5-10 meters.
The emitted infrared light is not visible to the human eye—requires compatible IR receiver to detect.
Careful handling required to avoid static damage; use appropriate ESD precautions.
Limited by the angular range—more directional in nature compared to wide-angle LEDs.

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