Microsemi Strengthens Radiation-Hardened Aerospace Products Portfolio

Delivers Industry's First 120V Input, 50W High-reliability DC-DC Converter Modules

ALISO VIEJO, Calif., Nov. 1, 2011 - Microsemi Corporation (Nasdaq: MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today announced that it strengthened its portfolio of radiation-hardened products with the industry's first family of 120 volt, 50 watt high-reliability single, dual and triple output rad-hard DC-DC converters. The robust SA50-120 series is a standard product targeted at satellites with greater than 5 kilowatts of operating power. The new DC-DC converters are available in production quantities now.

"The aerospace industry is trending towards higher-power satellites that employ a higher voltage main-power bus, allowing manufacturers to significantly reduce the size and weight of main bus wiring," said Robert Warren, vice president and general manager of Microsemi's Power Management Group. "This transition spurs the need for radiation-hardened devices with a higher main-power bus voltage interface capability. Once again, Microsemi has stepped up to deliver a high-performance solution that addresses evolving industry needs."

Offered in industry-standard packages, Microsemi's new DC-DC converters are ideal for driving high-reliability satellite power conversion applications both directly or by point-of-load (POL) converters to further "step down" power to devices such as customizable system-on-chip solutions and field programmable gate arrays.

Microsemi has been providing solutions for demanding space applications for 40 years. The company currently has more than 150 fully qualified space products in its portfolio including converters, customizable system-on-chip (cSoC) solutions, MOSFETS, rectifiers, switching diodes, transistors and zener diode. These solutions include a comprehensive range of standard and customized space solutions.

About Microsemi

Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor solutions for: aerospace, defense and security; enterprise and communications; and industrial and alternative energy markets. Products include high-performance, high-reliability analog and RF devices, mixed-signal and RF integrated circuits, customizable SoCs, FPGAs, and complete subsystems. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 3,000 employees globally.Learn more at www.microsemi.com.

SOURCE Microsemi Corporation

CONTACT: Gwen Carlson, Director of Marcom/Product PR, +1-949-380-6100, ext. 1835, or Beth P. Quezada, PR Specialist. +1-949-380-6100, ext. 1802. Email: press@microsemi.com

Web Site: www.microsemi.com

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