The specified component is a CAP CER 12PF 50V C0G/NP0 1812 capacitor. It features a capacitance of 12 picofarads with a tolerance of ±2 percent and can withstand voltages up to 50 volts. This is a ceramic capacitor of the C0G or NP0 type, designed for use in applications where stability across temperature is crucial, such as in electronic circuits, particularly those requiring precision timing and filtering. The 1812 or metric 4532 designation refers to the component's physical dimensions.