The CAP CER 27PF 250V C0G/NP0 2211 is a specific type of ceramic capacitor. It has a capacitance value of 27 pF and can withstand a voltage of up to 250 volts. This capacitor belongs to the C0G or NP0 class, which is known for its stability in temperature and frequency. The designation "1B" indicates that it meets certain performance standards, while the metric designation "5728" refers to its dimensions.