Cole Hersee

Cole Hersee is a highly respected American manufacturer specializing in rugged electrical components and semiconductor-based solutions, primarily for heavy-duty and automotive applications. Established in 1924 and based in Boston, Massachusetts, the company has built a longstanding reputation for reliability and durability in harsh operating environments. While not a traditional semiconductor fabricator, Cole Hersee integrates semiconductors into its products, such as solid-state relays, diodes, and electronic switches, which are critical for vehicle electrical systems, industrial equipment, and mobile applications. The company is particularly known for its high-quality switches and relays that ensure safe power management and circuit protection. Cole Hersee’s components are trusted worldwide for their performance in demanding conditions, emphasizing innovation, precision engineering, and American manufacturing quality.