IRVINE, Calif., Nov. 5, 2009 (GLOBE NEWSWIRE) -- Microsemi Corporation (Nasdaq: MSCC) will conduct its Fiscal 2009 and Fourth Quarter Earnings Conference Call with management to discuss results.

 Date: Thursday, November 12, 2009

 Time: 4:45 pm Eastern Standard Time (1:45 pm Pacific Standard Time)

To access the webcast, please log on to: www.microsemi.com and go to Investors and then to Events and Presentations. To listen to the live webcast, please go to this website approximately fifteen minutes prior to the start of the call to register, download, and install any necessary audio software. For those unable to participate during the live webcast, a replay will be available shortly after the call on the website for 90 days.

To participate in the conference call by telephone, please call: (877) 264-1110 or (706) 634-1357 at approximately 4:35 p.m. EST (1:35 pm PST). Please provide the following ID Number: 40247148.

A telephonic replay will be available from 6:00 p.m. EST (3:00 p.m. PST) on Thursday, November 12, 2009 through 11:59 p.m. EST (8:59 p.m. PST) on Thursday, November 19th. To access the replay, please call (800) 642-1687, or (706) 645-9291. Please enter the following ID Number: 40247148.

About Microsemi Corporation

Microsemi, 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. Microsemi'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, optimizing battery performance, reducing size or protecting circuits. The principal markets Microsemi serves include defense, commercial air, satellite, medical, notebook computers, LCD TVs, mobile, and connectivity applications. More information may be obtained by contacting Microsemi 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

CONTACT:  Microsemi Corporation
          Financial Contact:
          John W. Hohener, Vice President and CFO
            (949) 221-7100
          Investor Relations:
          Robert C. Adams, Vice President of Corporate Development
            (949) 221-7100