This is a CAP CER 12PF 50V C0G/NP0 0402 component. It has a capacitance value of 12 pF with a tolerance of ±0.25 pF and operates at a maximum voltage rating of 50V. The component is a ceramic capacitor in the C0G, NP0 (NPO) dielectric type, packaged in a 0402 size metric package (1005 imperial).