Littelfuse, Inc. engages in the manufacture of technologies in circuit protection, power control and sensing. It operates through the following segments: Electronics, Automotive, and Industrial. The Electronics segment includes the broadest and deepest portfolio of overvoltage and overcurrent solutions. The Automotive segment consists of a range of circuit protection, power control and sensing technologies for global original equipment manufacturers (OEMs). The Industrial segment includes power fuses and holders, protection relays and controls and other circuit protection products for use in various industrial applications such as oil, gas, mining, alternative energy, electric vehicle infrastructure, non-residential construction, HVAC systems, elevators and other industrial equipment. The company was founded by Edward V. Sundt in 1927 and is headquartered in Chicago, IL.