The CAP CER 390PF 50V C0G/NP0 0805 is a type of ceramic capacitor. It has a capacitance value of 390 picofarads, tolerance of ±2%, and voltage rating of 50 volts. This component is classified as a C0G or NP0 type, indicating its temperature-stable and non-inductive properties. The 0805 package size refers to the metric dimensions, measuring 2012 (or 8mm x 5mm) in diameter and height respectively.