The part number is CAP CER 22PF 50V C0G/NP0 1206 and it refers to a specific type of ceramic capacitor. The component has a capacitance value of 22 pF with a tolerance of ±2, and it can withstand a voltage of up to 50V. It follows the C0G or NP0 grade, which is known for its high stability over temperature. The package size is metric, identified as 1206, equivalent to the more commonly used 3216 in the imperial system.