The part number for the ceramic capacitor is MSAST042SCG4R5CWNA01. It has a capacitance value of 4.5 pF with ±0.25pF tolerance and can handle voltages up to 25V. The capacitor is in the C0G/NP0 class, which indicates it's made from a ceramic material with stable temperature characteristics. Its dimensions are specified as 01005 (0402 Metric).