The CAP CER 680PF 16V C0G/NP0 0603 is a specific type of ceramic capacitor. It has a capacitance value of 680 pF and can withstand voltages up to 16 volts. The designation "C0G" or "NP0" indicates that it belongs to the C0G class, which is characterized by its low temperature coefficient and stability over a wide range of temperatures. This capacitor is packaged in a 0603 (or 1608 metric) size case.