Anzen Electric Co., Ltd., operating under the brand Antex, is a specialized Japanese manufacturer of surge protection and circuit protection components. Founded in 1950 and headquartered in Tokyo, Japan, the company has focused on developing varistors, surge absorbers, and gas discharge tubes for over seven decades. Its core product lines include the ZNR brand of zinc-oxide varistors, the Antex series of surge protective devices, and hybrid protection modules for telecommunications and power systems. The company serves global markets in industrial equipment, consumer electronics, and automotive applications, with a strong emphasis on high-reliability components. Anzen Electric is recognized for its proprietary material technology in varistor ceramics, offering superior voltage clamping and current handling capabilities. It holds numerous patents in transient voltage suppression and has a significant share in the Japanese and Asian markets. The company also provides custom solutions for EMC compliance and lightning protection. Its manufacturing base in Japan ensures tight quality control and adherence to international safety standards such as UL, CSA, and VDE. Through continuous innovation, Anzen Electric has established itself as a trusted partner for critical protection needs in smart grids and renewable energy systems.