The CAP CER 3900PF 63V C0G/NP0 1812 is a type of ceramic capacitor with the following specifications: capacitance value of 3900 pF, tolerance of ±10%, and a voltage rating of 63V. It has a C0G/NP0 dielectric material classification and a metric case size of 4532 (also referred to as an 1812 package).