B72220S2511K101 from EPCOS (TDK) is a metal oxide varistor (MOV) in the TVS - Varistors, MOVs category, designed for circuit protection against transient overvoltage events. Components in this class are commonly used to help protect power inputs, industrial electronics, consumer equipment, appliances, and control systems from surge conditions caused by switching events or external disturbances. Engineers typically select EPCOS varistors for established surge protection performance, broad application fit, and integration into power entry or line protection stages. For new designs, this part may be relevant wherever compact and cost-effective overvoltage suppression is required, but exact electrical suitability should be confirmed from the latest datasheet. Lifecycle status for B72220S2511K101 is currently information not available, so sourcing teams should verify current production status with EPCOS (TDK) or authorized distribution before committing to volume builds. RoHS compliance information is also not available here and should be confirmed through official manufacturer documentation.