Teccor manufactures and markets semiconductor products for the telecommunications and industrial market segments. The company manufactures two product groups: a line of transient voltage suppressor devices and a line of power switching devices. Teccor has the number one market share position in North America and is in the top three globally for both product categories. July 8, 2003 – Littelfuse, Inc. (NASDAQ/NMS:LFUS) today announced it has acquired Teccor Electronics, Inc. from a subsidiary of Invensys plc for $44 million in cash plus a future payment of $5 million contingent on sales of Teccor products reaching $107 million for calendar year 2005.