This is a high-quality ceramic capacitor with the part number CAP CER 4.3PF 300V C0G/NP0 1206. It has a capacitance value of 4.3 pF and a tolerance of ±0.1 pF, making it suitable for applications that require precise capacitance values. The device operates at a maximum voltage rating of 300V and is designed with the C0G/NP0 dielectric material for stability across temperature ranges. Its metric package size is 1206 (3216 in imperial).