The largest application of beryllium copper alloy is in electrical and electronic components, especially springs, contactors, switches and relays. Used as a contactor in computers, optical fiber communication equipment, sockets linking integrated circuit boards and printed circuit boards (especially beryllium copper wires) and automobile.Mobile phones, laptops and other IT equipment tend to be more sophisticated,which requiring smaller, lighter and more durable contactors.This has prompted an increasing demand for beryllium copper components.