The part number CAP CER 0.018UF 63V X7R 2225 represents a specific ceramic capacitor with the following characteristics: a capacitance value of 0.018 microfarads, rated for ±20% tolerance, and a working voltage of 63 volts. The capacitor is classified as an X7R type, which indicates its temperature coefficient and stability properties. It has a case size of 2225 (also known as metric 5763).