The CAP CER 390PF 100V C0G/NP0 1206 is a specific type of ceramic capacitor. It has a capacitance value of 390 pF and operates at a voltage range of ±1 100V. The C0G/NP0 designation indicates that it belongs to the C0G or NP0 temperature coefficient class, which implies that its capacitance value remains stable across various temperatures.