B72214S0141K101 TVS Varistor, 140 V, 180 V, B722 Series, 360 V, Disc 14mm, Metal Oxide. The Epcos B722 StandarD series are round shaped radial leaded, SIOV metal oxide varistors. These varistors have wide operating voltage range from 11VRMS to 1100VRMS. B722 series varistors are used as control or compensation elements in circuits either to provide optimal operating conditions or to protect against excessive transient voltages.