An IR LED is a compact and efficient electronic component that is designed to emit infrared light when an electric current flows through it. Infrared light has a wavelength longer than that of visible light, typically ranging from around 700 nanometers to 1 millimeter. Because it is beyond the human visible spectrum, infrared light is invisible to the naked eye. IR LEDs are versatile components used in a wide range of electronic devices and systems where the emission of invisible infrared light is required. Whether for data communication, remote control, sensing, or night vision applications, IR LEDs play a crucial role in various technologies. When incorporating IR LEDs into your projects, consult the manufacturer’s datasheet and guidelines for detailed specifications and usage instructions. Additionally, consider using available libraries or code examples to facilitate the integration of IR LEDs into your applications.

Key Specifications:

• Wavelength: IR LEDs are available in various wavelengths within the infrared spectrum. Common ranges include near-infrared (NIR), mid-infrared (MIR), and far-infrared (FIR). The choice of wavelength depends on the specific application.
• Forward Voltage: IR LEDs typically operate at low forward voltage levels, often between 1.2V and 1.7V, depending on the specific model and design.
• Forward Current: The forward current, typically measured in milliamperes (mA), indicates the current required to activate the LED and produce infrared light.
• Radiation Pattern: IR LEDs emit infrared light in specific radiation patterns, such as narrow-angle or wide-angle, depending on the design.
• Application: IR LEDs are commonly used in applications such as remote controls, infrared communication, surveillance cameras with night vision, proximity sensors, and optical encoders.
• Mounting: IR LEDs are available in various packages, including through-hole and surface-mount designs, making them suitable for different mounting and soldering methods.
• Compatibility: IR LEDs are often paired with IR receivers (photodiodes or phototransistors) to create IR communication systems, like those used in remote controls for televisions and other devices.
• Modulation: Some IR LEDs are designed for modulation, enabling them to emit pulsed infrared light for data transmission, such as in infrared data communication systems.
• Power Efficiency: IR LEDs are generally power-efficient, making them suitable for battery-powered devices and applications.
• Environmental Sensitivity: Certain IR LEDs are designed for specific environmental conditions, such as outdoor use, and may feature enhanced resistance to factors like moisture and temperature.