Designing with Ceramic Capacitors
by Wolfgang Zeitler, Vishay Intertechnology
Ceramic capacitors are used in a wide variety of electronic systems, but in general they are the best choice in applications where relatively high voltage levels need to be combined with low capacitance. Depending on the context, low or high voltage can mean a number of different things but in the case of ceramic capacitors, low voltage refers to a dc range of 50 V to 500 V, and high voltage means 1 kV and up.
Perhaps more than for any other passive component type, ceramic capacitors encompass a wide range of sizes and form factors. Lower voltage disc capacitors may have a diameter and height profile as small as several millimeters whereas devices with voltage ratings in the >10 kV range may take the form of barrel- or plate-type devices with diameters and heights of several inches or more.
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