A ceramic capacitor with the designation CAP CER 39PF 63V C0G/NP0 1808 has a capacitance value of 39 pF and can withstand a voltage of up to 63 volts. It is classified as a C0G or NP0 type, which indicates its temperature stability characteristics are similar to those of the more commonly known Class 1 ceramic materials. The 1808 metric size denotes its compact dimensions.