The Bourns MOV-20DxxxK Series of metal oxide varistors provides robust protection against overvoltage transients in various applications. These devices feature a choice of varistor voltages and Vrms voltages, offering high current handling and fast response times. They are ideal for power supplies, power systems, telecom systems, white goods, and appliances, ensuring reliable performance and safeguarding sensitive electronics from damage due to transient faults. The MOV-20D681K specifically offers a varistor voltage of 680V and is RoHS compliant.