A 22 pF ceramic capacitor with a capacitance value of 22 picoFarads, tolerance of ±5 percent, and working voltage rating of 3 kilovolts is identified as CAP CER 22PF 3KV NP0 1808. It conforms to the 4520 Metric designation and features a C0G or NP0 dielectric type, which is commonly used in applications requiring stable capacitance over temperature.