The CAP CER 15PF 1KV C0G/NP0 1111 is a ceramic capacitor with specific characteristics. It has a capacitance value of 15 pF and a tolerance of ±10%. The capacitor's working voltage is rated at 1000V (1kV) and it follows the C0G or NP0 classification, often referred to as Type 1B in some contexts. This particular model, CAP CER 15PF 1KV C0G/NP0 1111, has a metric size designation of 2828.