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Littelfuse - Press Release 9-10-2007

 Littelfuse Introduces Industry's First 125V Subminiature Surface Mount Fuse with Current Rating Above 15A Littelfuse's 125V Subminiature Surface Mount Fuse

456 Series fuse offers high-amp circuit protection in a tiny package compatible with faster pick and place electronics assembly processes

DES PLAINES, Illinois, September 10, 2007 - Addressing customer requests for smaller embedded device protection of higher-current applications, Littelfuse (NASDAQ: LFUS) has launched a new series of fast-acting ROHS and UL compliant 20A and 30A subminiature surface-mount fuses.

Measuring only 10.10-mm (0.397-in.) long and 3.12-mm (0.123 in.) width and height, Littelfuse Nano2 456 Series ceramic fuses are available in 20A and 30A ratings, with interrupting ratings are 100A at 125 VAC and 300A at 65 VAC respectively.

The 456 Series was designed for situations where an ultra-small profile and higher-amp, pick and place surface mount fuse is desired.

Conceived as a custom solution for a world leading web server manufacturer, this product is now being offered globally. In addition to serving as an embedded secondary protection solution for PC servers, the 456 Series is also targeted to protect applications such as power supplies, wireless base stations, large scale storage systems and other higher current electronic systems.

The 456 Series enables circuit engineers to design-in reliable primary and secondary over-current protection with a single miniature fuse. Beyond the benefit of space-saving design, the 456 Series can serve as a more stable and reliable alternative to using similar smaller-amp Nano fuses in tandem. Prior to the introduction of the 456 Series, a dual-fuse method was the only way to achieve circuit protection greater than 15A using Nano fuses.

For additional specification information and to request samples, please visit the Littelfuse web site at http://www.littelfuse.com or call the Littelfuse Technical Support line at 1-800-999-9445.

About Littelfuse

As the worldwide leader in circuit protection products and solutions with annual sales of $535 million in 2006, the Littelfuse portfolio is backed by industry leading technical support, design and manufacturing expertise. Littelfuse products are vital components in virtually every product that uses electrical energy, including automobiles, computers, consumer electronics, handheld devices, industrial equipment, and telecom/datacom circuits. Littelfuse offers Teccor®, Wickmann® and Pudenz® brand circuit protection products. In addition to its Des Plaines, Illinois, world headquarters, Littelfuse has sales, distribution, manufacturing and engineering facilities in Brazil, China, England, Germany, Hong Kong, India, Ireland, Japan, Korea, Mexico, the Netherlands, the Philippines, Singapore, Taiwan and the U.S. For more information, please visit Littelfuse's web site at www.littelfuse.com.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995. Any forward looking statements contained herein involve risks and uncertainties, including, but not limited to, product demand and market acceptance risks, the effect of economic conditions, the impact of competitive products and pricing, product development and patent protection, commercialization and technological difficulties, capacity and supply constraints or difficulties, exchange rate fluctuations, actual purchases under agreements, the effect of the company's accounting policies, and other risks which may be detailed in the company's Securities and Exchange Commission filings.
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