The CAP CER 56PF 63V C0G/NP0 1808 is a specific type of ceramic capacitor with the following characteristics: it has a capacitance value of 56 pF, operates at a voltage of ±63V, and features a temperature coefficient of 0 ppm/°C (C0G) or near zero (NP0). This capacitor comes in a 1808 case size, which is also referred to as 4520 metric.