The CAP CER 3900PF 50V C0G/NP0 is a type of ceramic capacitor. It has a capacitance value of 3900 pF and operates within a voltage range of ±10% at 50V. This component is part of the C0G, NP0 series, which is characterized by its stability in temperature and frequency. The given packaging size is 1206, equivalent to 3216 metric size.