Optical relay

The photo relay is a semiconductor relay used for AC/DC, and refers to a device in which a light-emitting device and a light-receiving device are integrated. The input side and the output side are electrically isolated, but the signal can be transmitted by optical signals.

Its characteristics are semi-permanent life, small current drive signal, high-impedance insulation withstand voltage, ultra-small, optical transmission, no contact, etc.

Mainly used in measuring equipment, communication equipment, security equipment, medical equipment, etc.