The CAP CER 18PF 1KV C0G/NP0 1206 is a specific type of ceramic capacitor. It has a capacitance value of 18 picofarads (pF), with a tolerance of ±5%. This component can withstand an operating voltage of up to 1000 volts (1kV). The ceramic material used in this capacitor is classified as C0G, which is also referred to as NP0. It has a metric package size of 1206.