The specified capacitor is a 0.5 pf, 1 kV C0G/NP0 type with the code number 1111. It features a capacitance value of 0.5 pF, with an accuracy of ±0.1 pF and operates at a maximum voltage rating of 1000 volts (1kV). This is a ceramic capacitor with characteristics similar to those of the C0G/NP0 designation and is designed for use in metric dimensions, indicated by the code number 2828.