The CAP CER 12PF 1.5KV C0G/NP0 1808 is a ceramic capacitor with the following specifications: it has a capacitance of 12 picofarads, tolerates ±10 percent variation, and can withstand a maximum voltage of 1500 volts (1.5 kilovolts). This component belongs to the C0G/NP0 class, also known as Class I, and is packaged in an 1808 (or 4520 metric) case size, which corresponds to a small rectangular package measuring 4.55 millimeters by 2.80 millimeters by 1.50 millimeters.