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IR relays target telecom, computer apps

Posted: 20 Jan 2004 ?? ?Print Version ?Bookmark and Share

Keywords:international rectifier? ir? pvt212? microelectronic relay? mer?

International Rectifier (IR) has introduced its PVT212 microelectronic relay (MER) that delivers 75 percent lower on-resistance and up to 37.5 percent higher load current capacity compared to similar competing devices.

Designed for use as load switching in industrial controls, telecom line switching and power control and distribution in computer peripherals and instrumentation, the photovoltaic relay is a single-pole, normally-open solid-state relay that can replace electromechanical and reed relays to improve reliability. It uses the company's HEXFET power MOSFETs as the output switch, driven by an IC photovoltaic generator. The output switch is controlled by radiation from a GaAlAs LED, which is optically isolated from the photovoltaic generator.

The PVT212 offers high load current capacity of up to 550mA in ac-dc mode or up to 825mA in dc-only mode at up to 150V. It provides an on-resistance of 0.75 ohms maximum in ac-dc mode and 0.25 ohms maximum in dc-only mode. It also features a 4,000Vrms input-to-output isolation and an ESD tolerance of 4,000V using human body model.

Packaged in a 6-pin molded DIP with either thru-hole (PVT212) or surface-mount gull-wing leads (PVT212S), the MERs are available in plastic shipping tubes or on tape-and-reel for $2.26 each in 50,000-unit quantities.





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