A 6.8 picofarad ceramic capacitor with a tolerance of ±0.25 picofarads and a voltage rating of 250 volts is specified in the CAP CER 6.8PF 250V C0G/NP0 0603 description. This component measures 1608 metric size (approximately 0603 in imperial units) and features C0G/NP0 dielectric properties.