A ceramic capacitor with the designation CAP CER 0.33UF 50V X7R 1206 is a component that stores electrical energy, featuring a capacitance of 0.33 microfarads and a working voltage of 50 volts. It adheres to the X7R dielectric classification, which implies a moderate loss tangent and a relatively stable temperature coefficient, making it suitable for various applications where frequency stability is crucial. The capacitor's size is 1206, also known as 3216 in metric measurements.