The capacitors have the part number CAP CER 33PF 1KV C0G/NP0 1812 and a capacitance of 33 pF with a tolerance of ±2. They have a maximum working voltage of 1000V or 1kV and are classified as ceramic, specifically type C0G or NP0. The capacitors follow the metric size designation 4532 but are also referred to by their imperial equivalent 1812.