The specified capacitor is a CAP CER 2.1PF 200V C0G/NP0 0603 model with a capacitance of 2.1 pF and a tolerance of ±0.1pF. It has a voltage rating of 200V and is classified as a ceramic capacitor under the C0G/NP0 designation in the 0603 (1608 metric) package size.