Cosmo Electronics Corporation, founded in 1981, is a globally renowned professional manufacturer of photocouplers and relays. The company is headquartered in Taiwan and was listed on the Taiwan Stock Exchange (TSEC) in 2001. Cosmo Electronics specializes in the field of optoelectronic components, with its main products including photocouplers, solid-state relays, reed relays, and photorelays. These products are widely used in power supplies, internet devices, industrial controls, household appli