The CAP CER 12PF 500V C0G/NP0 0603 is a specific type of ceramic capacitor. It has a capacitance value of 12 pF with a tolerance of ±1 and can withstand a voltage of up to 500 volts. This component is identified as being part of the C0G or NP0 class, which refers to its dielectric properties. The package size is 0603, also known as 1608 metric.