A ceramic capacitor with part number CAP CER 39PF 500V C0G/NP0 1206 has a capacitance of 39 picoFarads and can withstand a maximum voltage of 500 volts. It is a C0G or NP0 type, which means it exhibits low loss and high stability over temperature changes. The capacitor's dimensions are those of the 1206 (3216 metric) package size.