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International Rectifier Introduces High-Efficiency 150V DirectFET MOSFET for Cooler, More Compact DC-DC Converter Applications.


EL SEGUNDO El Segundo (ĕl sēgŭn`dō), industrial city (1990 pop. 15,223), Los Angeles co., S Calif., on Santa Monica Bay; inc. 1917. Its products include navigation and computer systems, aircraft parts, office machines, telephone apparatus, and , Calif. -- International Rectifier International Rectifier Corp. (NYSE: IRF) is a manufacturer of power semiconductors (MOSFET, IGBT, diodes and thyristors), located in El Segundo, California, USA. It has a market capitalization of 2.48 billion USD and is listed on the S&P Midcap 400. , IR([R]) (NYSE NYSE

See: New York Stock Exchange
:IRF IRF Interferon Regulatory Factor
IRF International Religious Freedom
IRF Institut for Rationel Farmakoterapi (German)
IRF Inherited Rights Filter (Novell)
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), a world leader in power management technology, today introduced the IRF6643PbF, a 150V DirectFET([R]) MOSFET (Metal Oxide Semiconductor Field Effect Transistor) The most popular and widely used type of field effect transistor (see FET). MOSFETs are either NMOS (n-channel) or PMOS (p-channel) transistors, which are fabricated as individually packaged  for isolated DC-DC DC-DC Direct Current to Direct Current (power conversion)  converters operating from a wide range, 36V to 75V universal telecommunications input and 48V fixed input systems. Combining IR's advanced DirectFET packaging technology and its next-generation HEXFET HEXFET Hexagonal Field Effect Transistor ([R]) power MOSFET silicon, the new DirectFET device achieves a current rating up to 35 amperes while providing superior thermal performance and higher efficiency in a footprint equal to that of a low-profile SO-8 package.

"IR's latest device in our DirectFET line-up minimizes conduction, switching and reverse-recovery losses by continuing to improve the critical parameters that determine the performance of power MOSFETs, RDS (1) (Remote Data Services) A set of programming interfaces from Microsoft that enables users to update data on the Internet or intranets from their ActiveX-enabled browser. (on), Qg and Qgd. These improvements enable operation at higher current levels, while maintaining the smaller form factor of a single MOSFET," said Carl Blake, director of technical marketing for IR's Discrete Products. "Reducing board space by more than 50%, a single DirectFET MOSFET now can take the place of two or three SO-8 packages," continued Blake.

The device's extremely low typical 10V RDS(on) of 29 mOhms and low inductance makes it well suited for high-current synchronous rectifier rectifier, component of an electric circuit used to change alternating current to direct current. Rectifiers are made in various forms, all operating on the principle that current passes through them freely in one direction but only slightly or not at all in the  sockets. Also, with its very low 39 nC Qg and 11 nC Qgd, the IRF6643TRPbF functions well as a primary-side MOSFET in isolated or intermediate DC bus converters. The IRF6643TRPbF is packaged in the medium-sized (MZ) DirectFET package.

Data sheets and additional information can be found on the Web at http://www.irf.com/whats-new/nr061214.html.

Patented DirectFET Packaging Technology

International Rectifier's patented DirectFET MOSFET packages present a new set of design advantages not previously delivered by standard plastic discrete packages. Their metal can construction enables dual-side cooling that effectively doubles the current handling capacity of high frequency DC-DC buck converters powering advanced microprocessors. In addition, devices in the DirectFET package are compliant with the Restriction of Hazardous Substances Directive The Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment 2002/95/EC[1] (commonly referred to as the Restriction of Hazardous Substances Directive or RoHS  (RoHS). For more information related to DirectFET MOSFET packaging technology, visit directfet.irf.com and discovery.irf.com.

Availability and Pricing

The IRF6643TRPbF DirectFET MOSFET is available immediately. Pricing is US $1.24 each in 10,000-unit quantities. Prices are subject to change.

About International Rectifier

International Rectifier (NYSE:IRF) is a world leader in power management technology. IR's analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world's single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR's power management benchmarks to power their next generation products. For more information, go to www.irf.com.

Patent and Trademark Notice

IR's proprietary DirectFET technology is covered by US Patents 6624522, 6784540 and multiple other US and foreign pending patent applications. DirectFET[R], HEXFET([R]), and IR([R])are trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders.
COPYRIGHT 2006 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Date:Dec 14, 2006
Words:491
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