updated 12/22/2010 7:16:16 AM ET 2010-12-22T12:16:16

IRVINE, Calif., Dec. 22, 2010 (GLOBE NEWSWIRE) -- Microsemi Corporation (Nasdaq:MSCC), a leading provider of semiconductor technology aimed at powering a smart, secure, connected world, today announced two multi-port additions to its 60W PoE midspan family, the industry's first fully IEEE 802.3at standards-compliant high-power PoE solutions to include four-pair powering and gigabit switching support. Microsemi's new PowerDsine™ 6-port PD-9506G and 12-port PD-9512G midspans deliver up to 60W of power over all four pairs of Ethernet cabling, cutting power dissipation in half when compared to conventional two-pair solutions and providing 15 percent less energy consumption. The midspans also include a gigabit interface to more easily support high-power devices such as PTZ cameras and thin clients; and implement 2-event classification as specified in the IEEE 802.3at specifications for communications with connected devices.

"With this new addition to our portfolio, Microsemi now offers a wide range of options for building a 60W PoE infrastructure from as little as one-port increments up to 12 ports at a time. Our comprehensive PD-9500 family gives network administrators the ultimate flexibility for adding a broad range of networked devices while efficiently managing power installation and consumption," said Paul Pickle, corporate vice president and general manager of Microsemi's Analog Mixed Signal Group. "Microsemi is continuously innovating and deploying the most efficient power management solutions for our customers, because now, more than ever, power matters."

The PowerDsine 9500G family is designed specifically to power high power network devices over Ethernet cabling, eliminating the need for wiring to external AC power sources. The multiport midspans also feature a proprietary power feed technology that supports all legacy PoE devices, providing the most energy efficient solution in the industry today.

Microsemi's expanded PD-9500 family complements the company's extensive portfolio of midspan products, including managed and unmanaged products in a wide range of densities from single- to 24-port configurations.

Pricing and Availability

The PD-9506G/12G midspan is available in production volumes for a unit list price starting at $1199. Product specifications, application whitepapers and other information is available at Microsemi's website: http://www.microsemi.com .

Attachments:

Product Photo: http://www.microsemi.com/PRImages/PD-9500_Family.jpg

Product Datasheet: http://www.microsemi.com/PowerDsine/Products/Midspan/PD_9500G.asp

About Microsemi

Microsemi Corporation (Nasdaq:MSCC) offers the industry's most comprehensive portfolio of semiconductor technology. Committed to solving the most critical system challenges, Microsemi's products include high-performance, high-reliability analog and RF devices, mixed signal integrated circuits, FPGAs and customizable SoCs, and complete subsystems. Microsemi serves leading system manufacturers around the world in the defense, security, aerospace, enterprise, commercial, and industrial markets. Learn more at http://www.microsemi.com .

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

All trademarks are property of Microsemi Corporation. Actel Corporation is a wholly owned subsidiary of Microsemi Corporation.

Actel, Actel Fusion, IGLOO, Libero, Pigeon Point, ProASIC, SmartFusion and the associated logos are trademarks or registered trademarks of Microsemi Corporation. All other trademarks and service marks are the property of their respective owners.

"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 related to the new multi-port products being added to the 60W PoE midspan family, and the potential effects on future business, 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.

CONTACT:  Microsemi Corporation
          Financial Contact:
          John Hohener, Executive Vice President and CFO
            (949) 221-7100
          Editorial Contact:
          Ivanya Terrazas, Public Relations
            (650) 318-7570

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