PT19-21B/L41/TR8

The PT19-21B/L41/TR8 is an infrared emitting diode (IR LED) manufactured by Everlight Electronics Co Ltd, a renowned provider of optoelectronic components. This IR LED is designed to emit infrared light efficiently for various sensing and communication applications. Below is a comprehensive overview of its key features, specifications, and applications:

Key Features:

• Infrared Emission: The PT19-21B/L41/TR8 emits infrared light in the near-infrared spectrum, typically around 940 nanometers (nm), making it suitable for applications such as remote control systems, proximity sensors, and optical encoders.

• High Radiant Intensity: With a high radiant intensity output, this IR LED delivers sufficient optical power for reliable detection and communication in infrared-based systems, ensuring accurate and responsive performance.

• Narrow Beam Angle: It features a narrow beam angle, typically around 20 degrees, providing focused infrared illumination over a specific area, enhancing the detection sensitivity and range of infrared sensors and receivers.

• Surface Mount Package: The PT19-21B/L41/TR8 is housed in a surface-mount package, allowing for easy and secure mounting on printed circuit boards (PCBs), facilitating automated assembly processes and compact device designs.

• High-Speed Operation: This IR LED offers high-speed operation with fast switching times, enabling rapid modulation and data transmission in infrared communication systems such as IrDA (Infrared Data Association) and remote control protocols.

• Long Lifespan: Designed for durability and reliability, the PT19-21B/L41/TR8 has a long operational lifespan, ensuring consistent performance over extended periods of use, reducing maintenance and replacement costs.

Applications:

• Remote Control Systems: The PT19-21B/L41/TR8 is commonly used in remote control applications for consumer electronics such as televisions, set-top boxes, air conditioners, and audio systems, providing reliable infrared transmission for device operation.

• Proximity and Object Detection: It can be employed in proximity sensors and object detection systems to detect the presence or absence of objects in various applications, including robotics, industrial automation, and security systems.

• Optical Encoders: This IR LED serves as a light source in optical encoders used for position sensing and rotary motion detection in precision machinery, elevators, and motor control systems, ensuring accurate position feedback and control.

• Infrared Communication: It is suitable for infrared communication systems in short-range data transmission applications, such as wireless data transfer between mobile devices, smart meters, and IoT (Internet of Things) devices.

• Gesture Recognition: The PT19-21B/L41/TR8 can be integrated into gesture recognition systems for touchless control and interaction in smart devices, home automation systems, and automotive interfaces, enabling intuitive user interfaces and commands.