The specified capacitor is a CAP CER 1.1PF 500V C0G/NP0 1111 model, characterized by a capacitance of 1.1 pF ±0.5pF and a voltage rating of 500V. It features a ceramic construction with the C0G/NP0 dielectric material. This capacitor is suitable for applications requiring precise temperature stability, as indicated by its designation within the (1B) classification, corresponding to tolerance and temperature coefficient specifications. The part number "1111" also refers to an 2828 metric package size.