The CAP CER 120PF 4KV C0G/NP0 2220 is a specific type of ceramic capacitor. It features a capacitance of 120 pF with an accuracy of ±2% and can withstand voltages of up to 4000V (4kV). This capacitor has a metric case size designation of 2220, also known as 5750 in some specifications. It falls under the C0G/NP0 classification, which is a common designation for certain types of ceramic capacitors.