Optocoupler is an electrical-optical-electrical conversion device that transmits electrical signals through light. It consists of a light source and a light receiver. The light source and the light receiver are assembled in the same closed housing and separated from each other by a transparent insulator. The pin of the light source is the input end and the pin of the light receiver is the output end. The common light source is light emitting diode, and the light receiver is photosensitive diode, phototransistor and so on.
Advanced optical semiconductor
South Advanced Hongfa Relay
Optocoupler relay advanced optical semiconductor