General Description
The PVT312 Photovoltaic Relay is a single-pole, normally open solid-state relay that can replace electromechanical relays in many applications. It utilizes International Rectifier’s proprietary HEXFET power MOSFET as the output switch, driven by an integrated circuit photovoltaic generator of novel construction. The output switch is controlled by radiation from a GaAlAs light emitting diode (LED) which is optically isolated from the photovoltaic generator.

Features
■ HEXFET Power MOSFET output
■ Bounce-free operation
■ 4,000 VRMS I/O isolation
■ Load current limiting
■ Linear AC/DC operation
■ Solid-State Reliability
■ UL recognized and BABT certified
■ ESD Tolerance: 4000V Human Body Model 500V Machine Model

Applications
■ On/Off Hook switch
■ Dial-Out relay
■ Ring injection relay
■ Ground start
■ General switching