durable mov lightning protection ผลิตออนไลน์

Lightning protection varistor Directly inserted varistor 7D470K Varistors 7D470 series are semiconductor voltage limiting surge devices sintered from zinc oxide. They are widely used in electronic circuits for ... อ่านเพิ่มเติม

Varistor 14D561K is a semiconductor ceramic element made of zinc oxide. Its resistance varies linearly with the applied voltage. It has the characteristics of small volume and large flow rate. Main semiconducto... อ่านเพิ่มเติม