The CAP CER 3.9PF 200V C0G/NP0 0505 is a specific type of ceramic capacitor with the following characteristics: it has a capacitance of 3.9 picofarads ±0.25picofarad, operates at a voltage of 200 volts, and has a metric size of 1313 (0505 in the imperial system). It belongs to the C0G/NP0 class, which is known for its stable characteristics over temperature.