The specified capacitor is a CAP CER 82PF 500V C0G/NP0 1812 model. It has a capacitance of 82 picofarads with a tolerance of ±1 percent and can withstand voltages up to 500 volts. The ceramic material used for this component belongs to the C0G, also known as NP0, class, which is typically used in applications requiring stability in temperature and voltage.