The CAP CER 180PF 630V C0G/NP0 1812 is a type of ceramic capacitor. It has a capacitance value of 180 pF and can withstand voltages up to 630V. This capacitor belongs to the C0G/NP0 class, which is known for its stability over temperature, making it suitable for various applications. The designation "1B" refers to the tolerance, indicating that the value may vary within a certain range.