This is a high-precision ceramic capacitor with the following specifications: CER 8.2PF 250V C0G/NP0 2211 - Capacitance: 8.2 pF, Tolerance: ±0.5pF, Voltage Rating: 250V. It belongs to the C0G and NP0 types, commonly referred to as 1B in some classifications, with a metric size of 5728 and a part number of 2211.