The BZM55C9V1 is a varistor (metal oxide varistor) manufactured by Luguang, a Chinese electronics company. It is a 20 mm disc-type varistor with a peak surge energy of 750J and an optimized response time from 10/1000 µs to 10/10000 µs. The varistor is non-polar and comes with a symmetrical structure for improved surge protection. It is RoHS compliant and provides excellent temperature coefficient, noise absorption, and current flow characteristics. The BZM55C9V1 is suitable for applications such as communication equipment, industrial control networks, motor controller boards, and automotive electronics.