The specifications are for a CAP CER 1PF 500V C0G/NP0 1206 capacitor, which has a capacitance of 1 picofarad with a tolerance of ±0.25 picofarads and operates at a voltage rating of 500 volts. It is a ceramic type C0G, also known as NP0, with the metric size designation of 3216 equivalent to the 1206 package size in the imperial system.