The CAP CER 12PF 100V C0G/NP0 1206 is a type of ceramic capacitor. It has a capacitance value of 12 picoFarads (pF), tolerance of ±2%, and voltage rating of 100 volts. The "C0G" designation refers to its temperature stability characteristics, while the "NP0" classification signifies that it falls within the Class I category according to the EIA-96 specification for high-stability capacitors.