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Vishay Schottky rectifiers with 200V reverse voltage

Posted: 23 Nov 2004 ?? ?Print Version ?Bookmark and Share

Keywords:schottky rectifier? vishay intertechnology? mbr20h200ct? mbrf20h200ct? mbrb20h200ct-1?

Three new dual high-voltage Schottky rectifiers were recently released by Vishay Intertechnology Inc.

According to the company, these devices offer a 200V reverse voltage, which is said to be the highest available voltage for a silicon Schottky rectifier, a 20A forward current rating, and a maximum operating junction temperature of 175C.

Designed for secondary rectification of ac-to-dc and dc-to-dc converters with outputs up to 48V, as well as freewheeling and polarity protection applications, the new products are touted by the company to outperform 200V forward voltage Schottky rectifiers built on silicon carbide technology at a fraction of the cost.

With a typical forward voltage drop of 0.65V at 10A and 125C, small 1mA maximum reverse leakage current at 125C, and a 290A forward surge current per leg, these devices have been optimized for 50W to 250W power supply applications. In addition, they feature a large peak non-repetitive reverse surge energy of 20mJ at 8/20?s per leg, and provide a negligible reverse recovery time, which, combined with their low forward voltage, improves power efficiency and reduces heat in end products.

All three devices feature a dual chip, common cathode configuration and maximum operating junction temperature of 175C. Packaging options include TO-220AB (MBR20H200CT), isolated TO-220AB (MBRF20H200CT) and TO-262AA (MBRB20H200CT-1).

Samples and production quantities of the new Schottky rectifiers are already available, with lead times of six weeks for larger orders.




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