EL817C optocoupler IC SOP4 package

Optocouplers are usually small integrated circuits (ICs) primarily used to isolate two points in a circuit using light. This function prevents noise from entering the circuit from the input and vice versa. In fact, an optocoupler is a combination of a light transmitter and a receiver. The transmitter is usually a light-emitting diode, while the receiver can be a phototransistor. These two parts are completely separate, and no electric current flows between them; only light is transmitted. Optocouplers are digital or switching devices and are mainly used for transferring on-off control signals or digital signals. This product is a pack of 5 IC EL817C optocoupler in a 4-pin SOP4 surface mount package configuration