Micrel, Inc. is a leading global manufacturer of IC solutions for the worldwide high performance linear and power, LAN and timing and communications markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products.

MCRL

Micrel is traded on the Nasdaq Stock Exchange.

Micrel's Corporate headquarters is located at:
2180 Fortune Drive
San Jose, CA 95131
U.S.A.
Tel: 1-408-944-0800
Fax: 1-408-474-1000

• Doug Freedman, Gleacher & Company
• Chris Longiaru, Sidoti
• Tore E. Svanberg, Stifel

Mailing addresses
Shareholder correspondence should be mailed to:

Computershare
P.O. Box 43006
Providence, RI 02940-3006

Overnight correspondence should be mailed to:
Computershare
250 Royall Street
Canton, MA 02021

Shareholder website
www.computershare.com/investor

Shareholder online inquiries
https://www-us.computershare.com/investor/Contact

• Latham & Watkins
• Morrisson & Foerster

Micrel's transfer independent auditors are:
PricewaterhouseCoopers, LLP
Sam Jose, California
U.S.A.

No.

Micrel's quarters end:
First Quarter: March 31, 2011
Second Quarter: June 30, 2011
Third Quarter: September 30, 2011
Fourth Quarter: December 31, 2011

• Fidelity Management & Research
• Royce & Associates
• Heartland Advisors
• BlackRock Global Investors
• Vanguard Group
• Goldman Sachs Asset Management
• Wasatch Advisors

Micrel's next quarterly earnings announcement will be on April 21, 2011.

Technical and trade show information can be accessed at Micrel's on line press room at: http://www.micrel.com/contactpr.do?m_menu=3&submenu=1

You may call Micrel's Investor Relations team at: 1-408-944-0800.

You may either call Micrel at: 1-408-944-0800 or fill out a request form on the Micrel website at: http://hqgoldus.ar.wilink.com/?page_id=118

You may access Micrel's conference calls and webcasts at the following url: (Conferencecalls)

Dial-in information is available on the home page of the Micrel website (http://www.micrel.com/index.do) at least two weeks prior to each conference call.

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