The specified capacitor is a CAP CER 18PF 63V C0G/NP0 model with the product code 1812. It has an electrical capacitance of 18 pF and operates within a ±5% tolerance at a maximum voltage rating of 63V. The ceramic material used is classified as C0G, also known as NP0 (1B), and it features a metric case size of 4532 corresponding to the imperial case size 1812.