A capacitor with the designation CAP CER 3PF 25V C0G/NP0 0201 is specified for a capacitance of 3 pF ±0.25pF and operates at 25 volts. This is a ceramic capacitor with the designations C0G and NP0, which are typically used to describe temperature-compensating capacitors in the 0201 (0603 metric) package size.