The CAP CER 3900PF 200V C0G/NP0 is a type of ceramic capacitor. It has a capacitance value of 3900 pF and operates at a voltage rating of 200V. The capacitor is classified as C0G, which stands for COG (Class I Ceramic) or NP0 (NPO), denoting its temperature stability. Its physical dimensions are specified with the designation "1210" referring to a metric size, equivalent to the designation "3225."