The CAP CER 390PF 250V C0G/NP0 is a specific type of ceramic capacitor. It has a capacitance value of 390 pF and operates within a voltage range of 250V. This capacitor belongs to the C0G or NP0 class, which indicates its temperature stability and low loss factor properties. The 1210 designation corresponds to a metric case size of 3225, indicating the physical dimensions of the component.