JS Mirco-SEMI was founded in 2005 and is headquartered in Westerville, Ohio, USA. Its main R&D centers are: the United States, Taiwan, Malaysia, and Thailand. JSMSEMI is a company specializing in the production of power management chips (AC-DC/DC-DC), MOSFETs series (high, medium and low voltage MOS and COOL MOS), TVS diodes, rectifier diodes, fast recovery rectifiers, ultra-fast recovery, Schottky diodes, and Zener diodes. , Transient voltage suppression, bridge rectifier, ESD protection, general transistor, switching transistor, transistor (audio transistor, digital transistor, Darlington transistor, general transistor, low VCE (Sat) transistor, 2N series, 2SA series, 2SB series , 2SC series, 2SD series, 3DD series, BD series, BU series, MJ series, PMD series, RF series, TIC series, TIP series, etc.), one-way thyristor, two-way thyristor, three-quadrant thyristor, etc. company.