Cosmo Electronics Corporation engages in the manufacture and sale of relays and photocouplers worldwide. The company offers opto electronic devices, including photo couplers for microelectronics, data processing, and telecommunication systems; IGBT series photocouplers used in motor control inverter applications and inverters in power supply system; photo triacs for use in power control of two-way triac rectifiers; photo link connectors, an optical transmission device that convert electrical signal to digital signal; and sensors. It also provides relay devices, such as solid state relay MOSFET output products that are used to control the switch of output pole connection; solid state relays, an electronic state relays for industrial automation, home appliances, consumer electronics, and instruments; reed relays, a mechanical switch operation that control output pole connection for computer peripherals, instruments, and security and automation equipment, as well as for the telecom sector; and proximity sensors comprising reed switch based and solid-state magnetic proximity sensors. The company was incorporated in 1981 and is headquartered in New Taipei City, Taiwan.