Semtech Launches New Platform of Silicon Voltage Regulators for Military Applications

Company gains MIL

PRF

19500/356 qualification of 37 new 5W Zener

diode parts

CAMARILLO, Calif., Mar 23, 2010 (BUSINESS WIRE) -- Semtech Corp. (Nasdaq: SMTC), a leading supplier of analog and

mixed

-signal semiconductors, today announced it has received MIL-PRF-19500/356 qualification from Defense Supply Center

Columbus, (DSCC) of its brand new 5W Zener diode voltage regulator platform.

The qualification adds 37 low, medium and high range Zener diodes (part numbers ranging from 1N4954 to 1N4990) to

Semtech's product line of DSCC-qualified protection discretes. Each of the parts features low dynamic impedance and low

reverse leakage currents. Each voltage regulator is available in a small (3.56mm x 4.7mm max) hermetically sealed package

and is available in JAN, JANTX or JANTXV versions.

"This launch marks the first new QPL products that Semtech has produced specifically for the aerospace and space markets in

many years, and is the start of a number of new product introductions we will bring to market in the coming months," said Jose

Vargas, Vice President, Power Discretes Business for Semtech. "With this /356 qualification, Semtech is able to help overcome

a market shortage for these devices and meet customer demand with our innovative technology and great customer service."

The parts are produced in Semtech's JANS certified facility and all qualified products will be listed in the Qualified

Manufacturers List (QML) 19500.

The Semtech Power Discrete facility has been producing high-voltage military and commercial power discrete products since

1990. This facility holds certification to MIL-PRF-19500 and ISO 9001:2000 with AS9100:2004 Rev B.

About Semtech

Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, computing,

communications and industrial equipment. Products are designed to benefit the engineering community as well as the global

community. The company is dedicated to reducing the impact it, and its products, have on the environment. Internal green

programs seek to reduce waste through material and manufacturing control, use of green technology and designing for

resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol

SMTC. For more information, visit http://www.semtech.com.

Semtech and the Semtech logo are marks of Semtech Corporation.

SOURCE: Semtech Corporation

Semtech Corporation

Pauline Cadena

805-389-2755

pcadena@semtech.com