The specified capacitor is a CAP CER 3.9PF 50V C0G/NP0 0201 model, which features a capacitance of 3.9 pF with a tolerance of ±0.1pF and operates at a maximum voltage rating of 50V. It has the characteristics of a C0G (NP0) ceramic capacitor in a 0201 (0603 Metric) package size.