The CAP CER 9.1PF 200V C0G/NP0 0603 is a ceramic capacitor with specific capacitance and voltage ratings. It has a capacitance of 9.1 pF, with a tolerance of ±0.05 pF and can withstand voltages up to 200V. This component is classified as C0G, also known as NP0 (1B), and comes in the metric size of 0603 (1608).