Littelfuse Announces Sale of Efen Product Line

DES PLAINES, Ill.--Dec. 8, 2005--Littelfuse, Inc. today announced that it has signed a definitive agreement for the sale of its Efen(R) product line to Weber AG, Switzerland, a subsidiary of the Hager Group. Terms of the transaction were not disclosed. Littelfuse obtained the Efen brand through its acquisition of Heinrich Industrie AG in May 20, 200604. Annual sales of Efen products is approximately EUR 27 million. The sale is expected to be completed in the first quarter of 2006.

Efen is a leading manufacturer of fuse-switches for electrical power distribution equipment, utility and industrial applications primarily serving the European market. Efen has approximately 230 employees at production and sales facilities in Uebigau and Eltville, Germany and Kaposvar, Hungary. Weber offers complete main electrical distribution systems.

"While Efen is a non-core business for Littelfuse, it is a good strategic fit for Weber. Efen's product line will enhance Weber's offering of fuse-switches for the European electrical market, while enabling us to focus on continuing to expand our industry-leading circuit protection product portfolio," said Gordon Hunter, Chief Executive Officer of Littelfuse.

About Littelfuse

As the worldwide leader in circuit protection products and solutions with annual sales of $500.2 million in 2004, 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(R), Wickmann(R) and Pudenz(R) 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