The specified capacitor is the CAP CER 150PF 1.2KV C0G/NP0 1812, a ceramic capacitor with a capacitance of 150 pF and a tolerance of ±1%. It operates within a voltage range of 1200V (1.2kV) and has a C0G/NP0 temperature coefficient. The capacitor is designed in the 1812 package, which is equivalent to the metric size 4532.