Microsemi's PowerDsine PD9000G Midspan Family Wins TMC Labs 2009 Innovation Award

Cites Reliable, Flexible, Energy-efficient Power

Irvine, California, UNITED STATES

IRVINE, Calif., Oct. 13, 2009 (GLOBE NEWSWIRE) -- Microsemi Corporation (Nasdaq:MSCC), a leading manufacturer of high performance analog mixed signal integrated circuits and high reliability semiconductors, announced today that its PowerDsine(R) PD-9000 power over Ethernet midspan has been named a TMC(TM) Labs Innovation Award winner for 2009 by Technology Marketing Corporation's Internet Telephony Magazine.

"TMC Labs is proud to name Microsemi's PD9000G midspan a 2009 TMC Labs Innovation Award winner," said Richard "Zippy" Grigonis, executive editor of TMC's IP Communications Group. "The PD9000G midspan is one of a select group of products that we are recognizing in this, our tenth year since establishing our TMC Labs Innovation Award competition. We are pleased to highlight the key role that Microsemi's PD9000G Power-over-Ethernet midspans are playing in the industry's quest for a more reliable, flexible and energy-efficient power infrastructure for today's enterprise networks."

The PowerDsine PD9000 system is the industry's first high-power gigabit-class PoE midspan that fully supports IEEE 802.3at specifications. It simultaneously delivers a variety of system efficiency and backup features, along with smart, enterprise-class network power-management capabilities. The PD-9000G family provides up to 36 watts of power per port (even on all 24 ports simultaneously) over standard Cat 5 cabling. This more than doubles the power that could be delivered using previous PoE standards, making it possible to power a much broader range of terminals including WiMAX transmitters, 802.11n access points, Pan-Tilt-Zoom (PTZ) and dome network cameras, and thin clients.

"Microsemi is committed to delivering key new advances in PoE products and technology, and this also requires that we continue to contribute to and acknowledge the important work of the IEEE and other PoE industry standards development bodies," said Sani Ronen, Marketing Manager for Microsemi's PoE Midspan Products. "Our ground-breaking PD9000G midspan showcases the PoE industry's latest technological achievements, and we are very proud that it has been recognized with a 2009 TMC Labs Innovation Award."

About Power over Ethernet Technology

PoE is a technology for wired Ethernet, the most widely installed local area network technology in use today. PoE allows the electrical power necessary for the operation of each end-device to be carried by data cables, rather than by separate power cords. It minimizes the number of wires used to install the network, resulting in lower cost, less downtime, easier maintenance and greater installation flexibility. The technology was pioneered by PowerDsine, a founding member of the IEEE 802.3af Task Force. The company was acquired by Microsemi Corporation in January 2007 and is now part of Microsemi's Analog Mixed Signal Group. More information may be obtained by contacting the company directly or by visiting the PowerDsine products website at http://www.microsemi.com/powerdsine/.

About Microsemi

Microsemi Corporation, with corporate headquarters in Irvine, California, is a leading designer, manufacturer and marketer of high performance analog and mixed-signal integrated circuits and high reliability semiconductors. The company's semiconductors manage and control or regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.

Microsemi's products include individual components as well as integrated circuit solutions that enhance customer designs by improving performance and reliability, battery optimization, reducing size or protecting circuits. The principal markets the company serves include implanted medical, defense/aerospace and satellite, notebook computers, monitors and LCD TVs, automotive and mobile connectivity applications. More information may be obtained by contacting the company directly or by visiting its website at http://www.microsemi.com.

The Microsemi Corporation logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=1233

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in this news release that are not entirely historical and factual in nature, including without limitation statements concerning our PowerDsine(R) PD-9000 power over Ethernet midspan being named a TMC(TM) Labs Innovation Award winner for 2009 by Technology Marketing Corporation's Internet Telephony Magazine, are forward-looking statements. These forward-looking statements are based on our current expectations and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. The potential risks and uncertainties include, but are not limited to, such factors as rapidly changing technology and product obsolescence, potential cost increases, variations in customer order preferences, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company's products, adverse circumstances in any of our end markets, results of in-process or planned development or marketing and promotional campaigns, difficulties foreseeing future demand, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential unexpected business and economic conditions or adverse changes in current or expected industry conditions, difficulties and costs of protecting patents and other proprietary rights, inventory obsolescence and difficulties regarding customer qualification of products. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company's most recent Form 10-K and all subsequent Form 10-Q reports filed by Microsemi with the SEC. Additional risk factors may be identified from time to time in Microsemi's future filings. The forward-looking statements included in this release speak only as of the date hereof, and Microsemi does not undertake any obligation to update these forward-looking statements to reflect subsequent events or circumstances.


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