This is a CAP CER 180PF 50V C0G/NP0 1812 series ceramic capacitor with a capacitance value of 180 pF and a tolerance of ±5%. It has a voltage rating of 50V and follows the C0G/NP0 temperature coefficient characteristics. The component is designated as 1812 (or metric size 4532) and belongs to the 1B classification.