The CAP CER 3.9PF 16V C0G/NP0 01005 is a type of ceramic capacitor with a capacitance value of 3.9 pF and a tolerance of ±0.25pF. It operates at a maximum voltage rating of 16V and has the designator code C0G/NP0, indicating it belongs to the C0G (NP0) class of ceramics. The capacitor is available in the 01005 package size, which is equivalent to the metric size 0402.