The CAP CER 220PF 1KV C0G/NP0 1210 is a specific type of ceramic capacitor with the following characteristics: it has a capacitance value of 220 pF and a tolerance of ±10%, a working voltage rating of 1000V (1kV), and a metric size of 3225. This capacitor falls within the C0G/NP0 temperature range, also known as Type 1B, and is designed for applications requiring high stability and reliability.