A ceramic capacitor with the designator CAP CER 220PF 1.5KV NP0 1812 has a capacitance of 220 pF and operates within a tolerance of ±5%. It can withstand a maximum voltage of 1500V or 1.5kV. This component is classified as a C0G, NP0 type ceramic capacitor, specifically designed for the metric size 4532 (1812 in imperial measurements).