SEMITEC Corporation manufactures and sells electronic components, primarily sensors and related semiconductor devices, in Japan and internationally. The company, founded in 1958 and headquartered in Tokyo, Japan, operates through segments including Japan and Europe, China and Southeast Asia; its products serve automotive, medical, home appliances, office automation, industrial machinery, and consumer electronics markets. Core offerings encompass temperature sensors such as NTC thermistors and thermistor probe assemblies; infrared sensors including NC sensors and thermopiles; wind and tactile sensors; semiconductor devices comprising Zenamic metal oxide varistors, voltage and current regulating diodes, and power thermistors; surge absorbers like silicon surge absorbers and varistors; as well as specialized items including thermal barometric and micro pressure sensors, narrow view angle thermopiles, thin-film FT thermistors, ultra-thin glass substrate thin-film thermistor sensors, compact vacuum sensors, refrigerant gas sensor modules, and rectangular sensors for motors.
In recent developments, SEMITEC launched a directional wind speed sensor and an ultra-thin glass substrate thin-film thermistor sensor in 2023, alongside a compact thermistor for electric vehicle motors and slim thermistors for facial beauty equipment; the company renewed its corporate introduction video in April 2025 and announced exhibitions at The Battery Show North America 2025 and electronica India 2025. Previously known as Ishizuka Electronics Corporation, it adopted the SEMITEC name in 2011; recent financial results for the second quarter of the fiscal year ending March 2026 highlight performance across automotive, home appliance, medical, industrial equipment, and other segments. All products comply with RoHS Directive 2011/65/EU.