The CAP CER 12PF 1KV C0G/NP0 1808 is a ceramic capacitor with specific characteristics. It has a capacitance value of 12 pF, with an accuracy tolerance of ±2%. This component is rated for high voltage applications, with a maximum working voltage of 1000V (1kV). The ceramic material used in this capacitor falls under the C0G and NP0 designations, indicating its stable temperature characteristics and low losses. It is packaged in the 1808 metric size, also known as 4520 in imperial measurements.