The specified component is a CAP CER 150PF 1.2KV C0G/NP0 1206 - 150 pF ±1 1200V ceramic capacitor. It has a capacitance value of 150 picofarads and operates within a voltage range of 1,200 volts (1.2 kilovolts). This component is classified as a C0G, or NP0, type, which indicates its dielectric material is composed of a specific glass formulation that exhibits low loss and stable capacitance values over temperature variations. The size designation of 1206 refers to the metric equivalent of 3216.