The capacitor in question is a CAP CER 39PF 3KV C0G/NP0 1812 model. It features capacitance of 39 pF with ±5% tolerance and boasts an impressive voltage rating of 3000V, or 3kV. This is a ceramic capacitor classified as C0G, also known as NP0. Its metric designation is 4532, and it follows the 1812 package size.