The part number is 1825J1K00331FCR. This refers to a CAP CER 330PF 1KV C0G/NP0 1825 capacitor with specific characteristics, including a capacitance of 330 pF and a voltage rating of ±1000V (1kV). It is a ceramic capacitor classified as C0G, also known as NP0 (1B), and has a metric size designation of 4564.