The CAP CER 56PF 1KV C0G/NP0 1808 is a specific type of ceramic capacitor. It has a capacitance value of 56 pF with a tolerance of ±10% and can withstand a voltage of up to 1000V (1kV). This capacitor follows the C0G/NP0 designation, also known as Type 1B, in the metric system, and is available in an 1808 package size.