The part number CAP CER 390PF 50V C0G/NP0 0402 corresponds to a 390 pF ceramic capacitor with a tolerance of ±5% and a voltage rating of 50 volts. It has the temperature coefficient designation of C0G or NP0, indicating a high stability over temperature. This component is packaged in a metric size 1005, which is equivalent to an imperial size 0402.