The specified capacitor is the CAP CER 3900PF 500V C0G/NP0 1210. It has a capacitance of 3900 pF and operates within ±10% tolerance. This device is a ceramic capacitor classified as C0G or NP0, with a voltage rating of 500 volts. The designation "1210" refers to the metric size of the capacitor, which is equivalent to 3225 in imperial measurements.