A ceramic capacitor with the part number CAP CER 12PF 250V C0G/NP0 0603 is specified. This component has a capacitance value of 12 pF and operates within a voltage range of 250V. Its temperature coefficient is C0G, also known as NP0. The size of this capacitor corresponds to the metric dimensions of 1608, which is equivalent to the imperial measurement of 0603.