The specified capacitor is a CAP CER 390PF 16V C0G/NP0 with dimensions 1808 and a capacitance of 390 pF. It has a tolerance of ±2 and operates within a voltage range of 16 volts. This component is classified as a ceramic capacitor, specifically C0G or NP0 type (1B), which falls under the metric size designation 4520.