The Bourns MOV-10DxxxK series of metal oxide varistors (MOVs) provides robust protection against overvoltage transients such as lightning, power contact, and power induction. These devices feature a choice of varistor voltages and Vrms voltages, offering high current handling, high energy absorption capability, and fast response times. They are commonly used in power supplies, power systems, line voltage applications, telecom systems, white goods, and appliances. The MOV-10D221K specifically offers a varistor voltage of 220V and is RoHS compliant, ensuring environmental responsibility.