This is a 1812-size ceramic capacitor with the designation CAP CER 47PF 1KV C0G/NP0. It has a capacitance of 47 pF ±10% and a working voltage rating of 1000V (1kV). The C0G/NP0 classification indicates that it is a Type C0G/NP0 ceramic capacitor, suitable for applications requiring stability in temperature.