The specified capacitor is the CAP CER 390PF 50V C0G/NP0 1206. It features a capacitance of 390 picofarads with ±5% tolerance and operates at a maximum voltage rating of 50 volts. The ceramic capacitor belongs to the C0G, or NP0, dielectric class (1B) and conforms to the metric 3216 size equivalent to the imperial 1206 designation.