The CAP CER 3900PF 16V X7R 1206 is a type of ceramic capacitor with specific characteristics. It has a capacitance value of 3900 picofarads, operates at a voltage rating of 16 volts, and features an X7R dielectric material. Its case size corresponds to the 1206 (3216 Metric) designation, indicating its physical dimensions. Additionally, it is specified to have ±5% tolerance.