Cosel 

Operating globally from its headquarters in Toyama, Japan, Cosel Co., Ltd. specializes in the production and sale of diverse electrical components and electromagnetic interference (EMI) filters. Their comprehensive product range features AC-DC switching power supplies, DC-DC converters, and various semiconductor devices such as integrated circuits (ICs), field-effect transistors (FETs), transistors, and diodes. These essential components are designed for a broad spectrum of industrial and consumer equipment. The company, which was established in 1969, was originally named Elco Co., Ltd. before officially changing to Cosel Co., Ltd. in April 1992.