The CAP CER 390PF 250V C0G/NP0 1808 is a ceramic capacitor with specific characteristics. It has a capacitance of 390 pF and operates within a voltage range of 250V. The C0G/NP0 classification indicates that it belongs to the Ceramic Class, specifically the 1B type, with an 1808 (or 4520 metric) package size.