A high-frequency ceramic capacitor with the designation CAP CER 13PF 50V C0G/NP0 0201 is used. This specific type of capacitor has a capacitance value of 13 pF ±5 and operates within a voltage range of 50V. It adheres to the specifications of the C0G (NP0) class, which indicates its characteristics in terms of temperature and frequency stability. The metric equivalent size for this component is 0201 or 0603.