Ceramic Capacitor Power Rating

Class 2 power ceramic capacitors are used for circuit breakers for power distribution lines for high voltage power supplies in laser applications for induction furnaces and in voltage doubling circuits.

Ceramic capacitor power rating.

They can actually fit an x7r decoupling cap in this tiny form factor. For this reason some special styles. This note discusses the relationship of current handling power dissipation applied voltage and the maximum rated voltage of a multi layer ceramic capacitor. The dimensions of these power ceramic capacitors can be very large.

Smaller mlccs used in printed circuit boards are rated to voltages from only a few volts up to several hundreds of volts depending on the application. Power ceramic capacitors can be made to withstand voltages in the range of 2kv up to 100 kv with a power specified at much higher than 200 volt amperes. Either the maximum voltage rating or the maximum power dissipation of the part limits the maximum current through a capacitor. In recent years however as the maximum capacitance values of mlcc s has increased in any given case size many customers have looked to mlcc s as replacements for metalised film capacitors mfc s which have suffered from supply difficulties and shortages.

Applicable to temperature characteristics u2j 7u c0g 5c beyond rated voltage of 200vdc since the self heating is low in the low loss series the allowable power becomes extremely high ompared to the common x7r r7 characteristics however when a load with self heating of 20 c is applied at the rated voltage the allowable power may be exceeded. At high power applications the losses of these capacitors can generate a lot of heat. Dv dt ratings for multi layer ceramic capacitors.