Littelfuse, Inc., announced it successfully completed its acquisition of the circuit protection business of TE Connectivity Ltd. for $350 million in cash. The circuit protection business has a leading position in polymer-based resettable circuit protection devices, with a strong global presence in the automotive, battery, industrial, communications and mobile computing markets. The acquired business has operations in Menlo Park, California and manufacturing facilities in Tsukuba, Japan and Shanghai and Kunshan, China.