Ceramic capacitor is necessary to have a temperature that is greater than -55°C for stable operation.A substance's temperature coefficient of resistance is generally defined as how its electrical resistance changes with per degree change in temperature.A voltage of 200V can be used for operation.
C1206C683K2RAC7800 Features
with -/+15ppm/Cel ppm/°C being the highest temperature coefficient with the voltage - Rated DC of 200V
C1206C683K2RAC7800 Applications
There are a lot of KEMET C1206C683K2RAC7800 applications of ceramic capacitors.