The LH R974-LP-1 by Osram is a surface-mount technology (SMT) LED in an 0805 package, emitting hyper red light with a dominant wavelength of 645 nm. This component utilizes gallium arsenide phosphide (GaAsP) chip technology, providing a broad radiation angle of 150 degrees, making it suitable for a wide range of lighting applications. The LED's colorless diffused resin package ensures a uniform light distribution.
This LED is designed to operate within a temperature range of -30°C to 85°C, with a maximum junction temperature of 95°C. It supports a forward current of up to 30 mA and can withstand surge currents up to 100 mA. The LED's electrostatic discharge (ESD) protection is rated at 2 kV according to ANSI/ESDA/JEDEC JS-001 (HBM), highlighting its robustness against electrical shocks. The LED's luminous intensity varies between 11.2 and 71.0 mcd at 20 mA, indicating its adaptability to different brightness requirements.
LED
LEDs (Light Emitting Diodes) are semiconductor devices that emit light when an electrical current passes through them. They are widely used in a variety of applications due to their efficiency, long lifespan, and the ability to produce light in a wide spectrum of colors. LEDs are found in everyday devices such as indicator lights, displays, and lighting fixtures, as well as in specialized applications like medical devices and automotive lighting.
When selecting an LED for a project, engineers consider several factors including the LED's color, brightness (luminous intensity), power requirements (forward voltage and current), and package size. The choice of color is determined by the application, with different wavelengths (colors) used for different purposes. Brightness is important for visibility and is measured in lumens or millicandelas. Power requirements affect the LED's efficiency and compatibility with the circuit. The package size can influence the design of the PCB and the overall size of the end product.
LEDs offer advantages over traditional lighting sources, such as lower energy consumption, longer operational life, and reduced maintenance costs. They also provide greater design flexibility, allowing for innovative lighting solutions. However, engineers must also consider thermal management, as LEDs can generate significant heat during operation. Proper heat dissipation is essential to maintain performance and extend the lifespan of the LED.
Overall, LEDs represent a versatile and efficient lighting solution, suitable for a wide range of applications. Their selection and integration into designs require careful consideration of their electrical and optical characteristics, as well as the specific requirements of the application.