The CAP CER 820PF 1KV C0G/NP0 1812 is a specific type of ceramic capacitor. It has an capacitance value of 820 pF and operates within a tolerance of ±10%. The voltage rating for this component is 1000V, or 1kV. This particular capacitor falls under the classification of C0G (or NP0) dielectric material and is identified by its metric dimensions as 1812, equivalent to 4532 in the imperial system.