This is a CAP CER 120PF 50V C0G/NP0 1808 series ceramic capacitor. It features a capacitance of 120 pF with a tolerance of ±2 and operates at a maximum voltage rating of 50V. The C0G, or NP0, type indicates that it has a stable temperature coefficient and is suitable for applications where precise capacitance is required in the metric 1808 (4.7 x 3.2mm) package.