International Rectifier (IR) is an American power management technology company founded in 1947 and headquartered in El Segun, California. Produces analog and mixed-signal ICs, advanced circuit equipment, integrated power systems, and high-performance integrated components for computing. On January 13, 2015, the company became part of Infineon Technologies. As part of Infineon Technologies' overall semiconductor portfolio, IR products continue to be used in many applications, including lighting, automotive, satellite, aircraft, and defense systems; and key components in electronics-based power systems, including microelectronics in particular Computers, servers, networks and telecommunications equipment.