The CAP CER 56PF 5KV C0G/NP0 2220 is a specific type of ceramic capacitor. It has a capacitance value of 56 pF and can withstand a maximum voltage of 5000V, or 5kV. The C0G/NP0 designation indicates that it belongs to the C0G or NP0 class of ceramic capacitors, which are known for their stability and temperature resistance. This particular capacitor has a metric size code of 2220, equivalent to the more commonly used part number 5750.