The CAP CER 15PF 1KV C0G/NP0 1812 is a type of ceramic capacitor with specific characteristics. This component has a capacitance value of 15 pF and a tolerance of ±20 percent. It also features a voltage rating of 1000 volts, or 1 kilovolt, making it suitable for high-voltage applications. The C0G/NP0 classification indicates that the capacitor is made from a type of ceramic material known as NPO (Negative Temperature Coefficient of Resistor).