A ceramic capacitor with the part number CAP CER 12PF 63V C0G/NP0 1812 has a capacitance of 12 pF and is rated for ±1% tolerance. It operates at a voltage range of 63V and has a metric size designation of 4532, which corresponds to an imperial size of 1812. The capacitor belongs to the C0G or NP0 dielectric type, also known as 1B temperature coefficient specifications.