International Rectifier Introduces `Off-the-Shelf' Radiation-Hardened, High-Reliability DC-DC Converters That Simplify Design and Reduce Cost.

Technology Editors

EL SEGUNDO, Calif.--(BUSINESS WIRE)--Oct. 10, 2002

International Rectifier, IR(r) (NYSE:IRF), introduces the new M3G family of "off-the-shelf" radiation-hardened, high-reliability (hi-rel) DC-DC converters that streamline costly space industry design cycles. The M3G converters are complete single-ended forward buck converter "building blocks" for 28V-, 50V- and 70V-input power buses, in single-, dual- or triple-output configurations. Each module is assembled, tested and documented to reduce or eliminate cycle time needed for analysis and documentation of "in-house" circuit designs.

The small size, low mass and ruggedness makes the M3G converters ideal for geo-stationary and deep space satellites, and communication systems.

"It is difficult to find a fully-qualified and documented, `off-the-shelf' power conversion solution for space applications. Many system developers in the industry develop their own power system designs, which necessitate circuit development, documentation and analysis. IR's off-the-shelf converters enable in-house circuit designers to use a `ready-made approach' for power management systems, eliminating costs of development, analysis and documentation," said Tiva Bussarakons, Director of Marketing, Hi-Rel Advanced Analog products.

The M3G family is hardened to withstand total ionizing dose (TID) of 200krads, with single event effect (SEE) rating of greater than 82 MeV-square centimeters per milligram. The new converters simplify integration since EMI filtering, as well as frequency and phase synchronization, are built-in. In addition, the M3G devices are made with hybrid technology, enabling a compact footprint of approximately 2.67 cubic inches (43.75 cubic centimeters) at less than 2.82 ounces (80gm) in flight-qualified power systems.

All components are stress de-rated to meet the requirements of MIL-STD-975, MIL-HDBK-1547 and GSFC PPL-21. Completed analysis and documentation include radiation susceptibility, thermal, electrical stress, worst case, failure mode and effect analysis, reliability as well as extensive radiation test data, supporting the design documentation.

Key Minimum Parametric Limits

-- TID (total ionizing dose) greater than 200Krads

-- MIL-STD-461C, CE03 and CS01 compliance

-- Weight less than 80 grams

-- Operating temp: -55 degrees C to +125 degrees C

-- Synchronization input and output

-- Outline dimensions: 3.0"L x 2.0"W x 0.445"H

-- MTBF: 5 x 10 to the sixth power for space flight environment at 35 degrees C case temperature

Data sheets for the new M3G series DC-DC converters are available on the IR Web site. For more details, go to http://ec.irf.com/ec/adirect/ir?query=m3g&cmd=search

Pricing and Availability

Samples and flight units are available now. Pricing is US $7,950 each in 50-plus unit quantities. This product is subject to U.S. export control laws and regulations.

About International Rectifier

International Rectifier is recognized as a leading supplier of power semiconductors and systems solutions. IR's patented HEXFET(r) power MOSFETs, IGBTs and high-voltage ICs make electricity work smarter in industrial automation and controls, automotive electrical systems, consumer electronics, computers and peripherals, telecommunications, lighting and satellite/launch vehicle applications. Visit the International Rectifier Web site at www.irf.com.

Trademark Notice

IR(r) and HEXFET(r) are registered trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders.