A CAP CER 390PF 500V C0G/NP0 1206 is a type of ceramic capacitor. It has a capacitance value of 390 pF with a tolerance of ±2 and a voltage rating of 500V. The capacitor is part of the C0G, also known as NP0 (1B), series in a 1206 package size which is equivalent to 3216 metric.