This is a 10pF ±5% 500V C0G/NP0 ceramic capacitor with the designation of 1812 (or metric size 4532). It belongs to the C0G/NP0 classification, which refers to a specific type of ceramic material known for its stable and temperature-insensitive characteristics. This particular capacitor has a capacitance value of 10pF ±5% and can withstand a maximum voltage rating of 500V.