A CAP CER 470PF 4KV X7R 2220 is a type of ceramic capacitor with specific characteristics. It has a capacitance value of 470 picoFarads, with a tolerance of ±10%, and can withstand a voltage of up to 4000 volts (4kV). This component has a classification of X7R, indicating its temperature coefficient, and is packaged in the metric size 2220.