This is a 2220-sized ceramic capacitor with the designation CAP CER 5600PF 1KV C0G/NP0. Its capacitance value is 5600 pF ±1%, and it has a maximum working voltage of 1000V (1kV). The C0G/NP0 rating indicates that this capacitor has a high stability across temperature variations, making it suitable for applications requiring precise capacitance values.