EL SEGUNDO, CA, May 1996 -- International Rectifier (IR) has introduced the PVT422 Series of dual-pole, normally-open photovoltaic relays. These devices can replace electro-mechanical relays in many applications, and have been designed for use in high-volume applications in peripheral telecom systems such as multi-function telephones, answering machines, credit card readers and fax modems.

The PVT422 Series use IR's 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 GaAIAs light-emitting diode, which is optically isolated from the photovoltaic generator. Input to output isolation is 4,000 Vrms, with 1,000 V dc isolation between channels. The relays are rated at 0-400 V, 120 mA AC/DC. Unlike competitive relays, the maximum load current is not derated when both poles are on simultaneously.

The relays offer solid-state reliability coupled with bounce-free operation. They are supplied in an 8-pin molded DIP package, with either through-hole or gull-wing surface-mount terminals.

Contact the Technical Assistance Center or your local Sales Rep.