22CThe 05D270K with Varistors 22V 27 (23~31.1) is an electronic part manufactured by COV22C. It is a 60V 100A through-hole part that is RoHS compliant. It is a varistor, which is a type of device used to protect circuits from excessive voltage. The part features a rated voltage of 22V and is designed to handle transient voltages from 23 to 31.1V, absorbing energy up to a maximum of 100A. It is a through-hole device, meaning it is designed to be soldered directly to the board rather than surface mounted. It is also RoHS (Restriction of Hazardous Substances) compliant, meaning it meets safety regulations for hazardous materials.