The part number MCASU063SCG180JFNA01 refers to a CAP CER 18PF 50V C0G/NP0 0201 ceramic capacitor from the manufacturer Adibuja. This component has a capacitance value of 18 pF, operates within a voltage range of 50V, and is classified as a C0G or NP0 type, which is known for its stable characteristics over temperature changes. It features a compact 0201 (0603 metric) size.