Littelfuse, Inc. is a global manufacturer of technologies in circuit protection, power control and sensing. The Company's product portfolio includes fuses, semiconductors, polymers, ceramics, relays and sensors. It conducts its business through three reportable segments: Electronics, Automotive, and Industrial. Through these segments, the Company designs, manufactures and sells components and modules for circuit protection, power control and sensing products throughout the world. The circuit protection products protect against electrostatic discharge, power surges, short circuits and voltage spikes; its power control products safely and efficiently control power, and its sensor products are used to identify and detect temperature, proximity, flow speed and fluid level in various applications. The Company’s products are found in automotive and commercial vehicles, industrial applications, data and telecommunications, medical devices, consumer electronics and appliances.