The CAP CER 3900PF 50V C0G/NP0 0805 is a type of ceramic capacitor. It has a capacitance value of 3900 pF and can handle a maximum voltage of 50 volts. The C0G/NP0 designation indicates that it is a temperature-stable ceramic capacitor with a low loss factor. This component is available in an 0805 (2012 metric) package size.