Transphorm, Inc., a semiconductor company, develops, manufactures, and sells gallium nitride (GaN) semiconductor components for high voltage power conversion applications in Mainland China, Hong Kong, Taiwan, the United States, Japan, South Korea, India, and Europe. The company's products include GaN field effect transistors in various packages. Its GaN devices allows customers to design power systems creating functional value in various end products, including smartphone power adapters/fast-chargers, power supplies for datacenter servers/communication, industrial power converters, chargers/converters/inverters for electric vehicles, and other applications. The company offers its products through regional distributors and sales representatives. Transphorm, Inc. was founded in 2007 and is headquartered in Goleta, California. As of June 20, 2024, Transphorm, Inc. operates as a subsidiary of Renesas Electronics Corporation.