Ceramic capacitor with the designation CAP CER 3.9PF 500V C0G/NP0 1210 has a capacitance value of 3.9 pF and a tolerance of ±0.5 pF, offering a voltage rating of 500V. It is classified as a C0G or NP0 type capacitor within the 1210 case size equivalent to 3225 in metric units.