LW520A Optoelectronics

LED indication devices, as the most widely used form of discrete LED devices, are indispensable for applications in different fields. Among these LED indicators, LW520A has been widely used in various industries, and its application field and working principles are described in this article.

LW520A overview

LW520A is a solid state LED indication light that was first designed and launched by OKLEAD. The product is mainly a combination of a metal base and a semiconductor LED, and is mainly used for indication light devices. It is cylindrical in shape and has a diameter of 8mm. It is available in two colors: red and yellow.

Application field

LW520A LED indication light is mainly used in the fields of electronic circuit board, industrial control equipment, general electronic equipment, medical equipment, fire alarms and security monitoring systems, home electrical appliances, automatic instrumentation and other fields.

Working principle

The main working principle of LW520A is based on the principle of "VolExchange" (Voraration Exchange). Under the action of an external electric field, the electron hole pair will move from the p-type material to the n-type material, and the electrons in the n-type material will also move in the opposite direction. As a result, the number of charges is exchanged between the n-type material and the p-type material, and the voltage at the junction between the two materials increases, so that the current flows through the LED and the LED is illuminated. In order to drive the LED, an external power source must be connected to the LED indication device. The voltage and current of the power supply must be matched to the characteristics of the LED in order to achieve a suitable forward voltage. The most common way to power the LED is to connect it to a constant current source.

Conclusion

To sum up, LW520A LED indication light has been widely used in various industries due to its reliable performance, strong applicability and low cost. Its working principle is based on the "VolExchange" principle, and it needs to be powered by an external current source that matches its characteristics to achieve proper illumination.

LW520A

Seoul Semico...

0.14 $

1000

LED WHITE 5MM ROUND T/HWh...