The CAP CER 390PF 1.2KV C0G/NP0 2225 is a type of ceramic capacitor with specific characteristics and ratings. It has a capacitance value of 390 picoFarads, with a tolerance of ±5% and a voltage rating of 1200 volts (1.2 kilovolts). The designation "C0G" or "NP0" indicates that it belongs to the class of temperature-compensating capacitors, also known as Class 1, NPO (nominal parallel equivalent) types. In terms of physical dimensions, this capacitor is available in a 2225 package size, which corresponds to the metric designation 5763.