The IR91-21C/TR10 is an infrared emitting diode (IRED) manufactured by Everlight Electronics Co., Ltd. It emits infrared light at a specific wavelength, typically around 940nm, and is commonly used in various applications requiring infrared transmission, such as remote controls, light curtains, and optical sensors.

Applications

• Remote Control Systems
• Light Curtains
• Optical Sensors
• Infrared Data Transmission
• Proximity Sensors

Features

• High Radiant Intensity: Provides strong infrared signal output.
• Narrow Beam Angle: Directs the infrared light in a focused beam.
• Wavelength: Emits infrared light at approximately 940nm.
• Fast Switching Speed: Allows for high-speed data transmission.
• Long Operating Life: Ensures reliable operation over an extended period.
• RoHS Compliant: Environmentally friendly construction.

Benefits

• Reliable Performance: High radiant intensity and narrow beam angle ensure reliable signal transmission.
• Efficient Data Transmission: Fast switching speed enables high-speed data communication.
• Long-Term Reliability: Long operating life reduces maintenance costs.
• Environmentally Friendly: RoHS compliant materials minimize environmental impact.

Additional Details

The IR91-21C/TR10 is typically packaged in a standard T-1 3/4 (5mm) package. It requires a forward voltage of approximately 1.2 to 1.5V and a forward current of typically 20mA for optimal operation. The viewing angle is relatively narrow, focusing the emitted light. The Everlight datasheet provides detailed information regarding optical and electrical characteristics, as well as recommended operating conditions. Proper current limiting resistors should be used to prevent damage to the LED. The 'TR10' suffix usually indicates a specific packaging or tape and reel option.