SUNNYVALE, CA -- (MARKET WIRE) -- Dec 23, 2008 -- Supertex, Inc. (NASDAQ: SUPX), a recognized leader in high voltage analog and mixed signal integrated circuits (ICs), today announced that it will be presenting at the 11th Annual Needham Growth Stock Conference, to be held at the New York Palace Hotel, New York, NY, on January 6-8, 2009.

Vice President of Finance and CFO, Phil Kagel, will be presenting at 9:00 a.m. (ET) on Wednesday, January 7, 2009, in the Hubbard Room of the New York Palace Hotel, 455 Madison Avenue, New York, NY, 10022. Mr. Kagel will present an overview of Supertex's markets and products, and recent Company financial results.

About Supertex

Supertex, Inc. is a publicly held mixed signal semiconductor manufacturer, focused on high voltage analog and mixed signal products for use in the medical, imaging, automotive, industrial, telecommunication, networking, and consumer electronics industries. Supertex product, corporate and financial information is readily available at www.supertex.com.

Corporate Headquarters:
Ken Vickers
Marketing Communications Manager
408/222-4810

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