The CAP CER 3900PF 25V C0G/NP0 1206 is a 1206 size ceramic capacitor with a capacitance value of 3900 pF and a voltage rating of 25V. It features a ±5% tolerance and is designed as a C0G or NP0 type, which indicates its stability over temperature variations. This component is suitable for applications requiring precision capacitance values in a small footprint.