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PV relays rated for maximum pulsed load current

Posted: 22 Sep 2006     Print Version  Bookmark and Share

Keywords:International Rectifier  photovoltaic relays  computer peripherals  audio equipment  PVN012A 

International Rectifier (IR) has introduced a series of photovoltaic (PV) relays targeted at computers and computer peripherals, power supplies and power distribution, audio equipment, and instrumentation.

Compared to its predecessor, the PVN012A family offers a 50 per cent reduction of AC/DC on-state resistance (RDD-ON) and 37.5 per cent increase of maximum AC/DC load current rating at full (100 per cent) duty cycle. The new series is also rated for maximum pulsed (surge) load current.

"With low on-resistance and high volumetric load current density in such a small package, the PVN012A family exceeds the performance capabilities of traditional electromechanical relays. When compared to traditional electromechanical relays, the PVN012A family offers a smaller footprint, high input-to-output isolation, bounce-free operation, solid-state reliability, stable on-resistance over life and greater input sensitivity," said Andrew Huang, director of FAE, Asia Pacific.

The new 20V single-pole, normally open, solid state relays utilise a HEXFET MOSFET output switch, driven by a unique integrated photovoltaic generator circuit.

The output switch is controlled by radiation from a GaAlAs LED that is optically isolated from the photovoltaic generator. The new series is available in 6-pin DIP, 6-pin SMT, and in tape and reel. The devices are RoHS compliant and production orders are available immediately.

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