Varistor ceramics, predominantly based on SnO₂, are engineered to exhibit a highly non‐ohmic current–voltage relationship that is critical in safeguarding electrical circuits from transient voltage ...

The primary defense to protect electrical equipment from over-voltages is surge arresters. These necessary devices hold metal oxide varistors (MOVs) and are rapid response protectors against voltage ...

KOA Speer Electronics has launched the NV73S series of multilayer metal-oxide varistors, which handles a surge current of up to 6,000 A, claiming five times higher protection than existing products.

Bourns, Inc. has added two new product series to its automotive-grade, AEC-Q200-compliant BVRA multilayer varistor line. The new BVRA1210 and BVRA1812 Series are designed for high surge protection in ...