The capacitors are from the CAP CER series with part number CQ0201BRNPO9BNR90. These ceramic components have a capacitance value of 0.9 pF ±0.1pF and operate within a voltage range of 50V. They adhere to the C0G/NP0 specifications, making them suitable for applications requiring stable capacitance over temperature changes. The 0201 package size is equivalent to the 0603 metric size.