KEC Corporation is a Japanese semiconductor manufacturer headquartered in Tokyo, Japan. Originally founded in 1968 as Kanto Electron Co., Ltd., the company later changed its name to KEC Corporation. Core business encompasses design, fabrication, and sales of discrete semiconductors and integrated circuits. The product portfolio is heavily focused on small-signal devices including bipolar transistors (e.g., KTC, KTA series), digital transistors (KRC, KRA series), and MOSFETs (K-series). Additional key lines cover Zener, Schottky, and fast-recovery diodes, as well as linear ICs such as general-purpose operational amplifiers and comparators. KEC also provides automotive-grade components meeting AEC-Q101 standards for vehicle applications. With decades of manufacturing experience, KEC has built a reputation for high reliability and cost-effective solutions in consumer, industrial, and automotive markets. The company maintains a strong supply chain across Asia and distributes worldwide through subsidiaries like KEC America Corp. While not among the largest global players, KEC is recognized as a solid second-source supplier of discrete semiconductors for many tier-1 OEMs.