This is a 50V ceramic capacitor with a capacitance of 8.2nF and tolerance of ±10%. It has the designation CAP CER 8200PF 50V C0G/NP0 1812, which corresponds to the metric size 4532. This type of capacitor is part of the C0G/NP0 class, often referred to as NPO (not polarity dependent) or C0805 for its size and specifications.