The first devices in a new family of Super Barrier Rectifiers (SBR), designed for automotive applications have been recently announced by Diodes Incorporated.

The new devices offer a lower forward voltage drop, improved avalanche rating and higher safe operating area (SOA) than alternative Schottky or ultra-fast diode alternatives.

The rugged rectifiers enable automotive designers to increase the reliability of motor control, display panel and LED lighting circuits.

The AECQ101 qualified SBR20A60CTB, SBR30A45CT BQ and SBR3045CTBQ rectifiers handle output currents of 20A and 30A and are provided in an industry standard TO-263 package, while the SBR1045D1Q is rated for 10A and comes in the slightly smaller TO-252 package.

The family’s low VF means circuit power efficiency can be improved and much cooler operation achieved.

The resulting improvement in reliability is further increased by the devices’ higher reverse avalanche rating, that provides greater protection against transient voltage spikes and its lower reverse leakage provides a higher SOA and guards against thermal runaway in extreme conditions or high temperature operating environments and applications.