Malvern, Pa. Three new dual high-voltage Schottky rectifiers from Vishay Intertechnology, Inc. features a 200-V reverse voltage, the highest available voltage for a silicon Schottky rectifier, claims the company. In addition, the new rectifiers offer a 20-amp (A) forward current rating and a maximum operating junction temperature of 175°C.
Vishay says its new silicon-based devices outperform 200-V forward voltage Schottky rectifiers built on silicon carbide technology at a fraction of the cost, and are designed for secondary rectification of ac-to-dc and dc-to-dc converters with outputs up to 48 V, as well as freewheeling and polarity protection applications. Package options are the TO-220AB (MBR20H200CT), isolated TO-220AB (MBRF20H200CT), and TO-262AA (MBRB20H200CT-1). All three devices feature a dual chip, common cathode configuration and maximum operating junction temperature of 175°C.
These new Schottky rectifiers have been optimized for 50-W to 250-W power supply applications. They feature a low typical forward voltage drop of 0.65 V at 10 A and 125°C, a 1 mA maximum reverse leakage current at 125°C, a high 290 A forward surge current per leg, and a large peak non-repetitive reverse surge energy of 20 mJ at 8/20 μs per leg.
The new rectifiers provide a negligible reverse recovery time, said the company, which, combined with their low forward voltage, improves power efficiency and reduces heat in end products that include the power supplies of desktop and notebook PCs, servers, telecommunication exchangers, HDTVs, and other SMPS devices with high power outputs.
Samples and production quantities of the new MBR20H200CT (TO-220AB), MBRF20H200CT (ITO-220AB), and MBRB20H200CT-1 (TO-262AA) Schottky rectifiers are available now, with lead times of six weeks for larger orders. Pricing for U.S. delivery is $800 per 1,000 units.
Call (619) 336 0860