The HSDL-4420-031 is an infrared (IR) emitter from Avago Technologies. This high-intensity IR LED is designed for a variety of applications including remote controls, light curtains, and optical sensing. Known for its reliable performance and efficient energy usage, the HSDL-4420-031 is a popular choice in numerous electronic systems.

Applications:

• Remote Controls: Commonly used in remote controls for televisions, stereos, and other electronic devices.
• Light Curtains: Employed in safety light curtains for industrial equipment.
• Optical Sensing: Integrated into optical sensors for object detection and proximity sensing.
• Infrared Communication: Used in short-range infrared communication systems.
• Bar Code Scanners: Utilized in bar code scanners for reading bar codes.

Features:

• High Intensity: Provides high radiant intensity for efficient IR transmission.
• Narrow Beam Angle: Offers a narrow beam angle for focused IR emission.
• Wavelength: Emits infrared light at a specific wavelength suitable for various applications (typically around 940nm).
• Fast Switching Speed: Supports fast switching speeds for high-frequency modulation.
• Compact Package: Comes in a compact and robust package for easy integration.

Benefits:

• Efficient IR Transmission: High intensity ensures efficient IR transmission over distance.
• Precise Object Detection: Narrow beam angle enables precise object detection and sensing.
• Reliable Performance: Designed for reliable and consistent performance in demanding environments.
• Easy Integration: Compact package simplifies integration into various electronic systems.
• Energy Efficient: Low power consumption makes it energy efficient for battery-powered devices.

Additional Details:

The HSDL-4420-031 operates at a forward voltage typically around 1.3 to 1.6V and requires a forward current to achieve optimal radiant intensity. It is crucial to use a current-limiting resistor in series with the LED to prevent damage from overcurrent. The device is commonly available in a through-hole package, making it easy to mount on printed circuit boards. The spectral output is centered around a specific wavelength, and it's important to consider this when designing optical systems to ensure compatibility with IR receivers. Proper heat sinking may be necessary for high-current operation to maintain performance and longevity.