The CAP CER 8.2PF 200V C0G/NP0 1808 is a specific type of ceramic capacitor that provides a capacitance value of 8.2 picofarads with a tolerance of ±0.1 pF and can withstand a maximum voltage rating of 200 volts. It is classified as a C0G or NP0 type, indicating its high precision and stability characteristics, particularly suited for applications requiring stable capacitance values over temperature changes, often found in metric-sized packages, specifically the 1808 (also referred to as 4520 metric) package size.