东芝半导体&存储产品中国官网https://toshiba-semicon-storage.com/info/docget.jsp?did=69051[PDF]Applications of photorelays to FA equipmentA brief introduction to the photorelay is given in front of this manual. Photorelay is a type of solid-state relay that uses MOSFET for its contacts (switches). It is also known as a photo-MOS relay or a MOSFET relay. A photorelay consists of an LED that converts an electrical signal for controlling a contact