The part number CAP CER 15PF 3KV C0G/NP0 2225 refers to a specific type of ceramic capacitor. It has a capacitance value of 15 picofarads and operates within a tolerance range of ±10 percent. The device is designed for use at high voltage, specifically up to 3000 volts or 3 kilovolts. It features a C0G/NP0 dielectric, also known as a Class I ceramic material. The dimensions of the capacitor are specified by the metric size code 2225, and it has a 5763 equivalent part number.