Film Capacitors – Power Electronic Capacitors
General purpose applications
B25360*
MKP AC HP
Maximum current Imax
Maximum RMS current for continuous operation.
Series resistance Rs
Effective ohmic resistance of the conductors of a capacitor under specified operating conditions.
Maximum peak current Î
Maximum repetitive peak current that can occur during continuous operation.
Maximum surge current Îs
Peak non-repetitive current induced by switching or any other disturbance of the system which is allowed for a
limited number of times, for durations shorter than the basic period.
Lowest operating temperature θmin
Lowest temperature of the dielectric at which the capacitor may be energized.
Maximum operating temperature θmax
Highest temperature at which the capacitor may be operated.
Maximum permissible voltages
Capacitor units shall be suitable for operation at voltage levels and duration according to the table below without
any failure. It should be recognized that any significant period of operation at voltages above the rated one will
reduce overall life.
Overvoltage
Maximum duration within one day
Observation
1.1 VR
1. 15 VR
1.2 VR
1.3 VR
30% of on-load duration
System regulation
System regulation
System regulation
System regulation
30 min
5 min
1 min
NOTE 1: An overvoltage equal to 1.5 VR for 30 ms is permitted 1000 times during the life time of the capacitor.
The amplitudes of the overvoltages that may be tolerated without significant reduction of the life time for the
capacitor depends on their duration, the number of application, and the capacitor temperature.
In addition these values assume that the overvoltages may appear when the internal temperature of the
capacitor is less than 0 °C but within the temperature category.
NOTE 2: The average applied voltage must not be higher than the specified voltage.
CAP FILM P PM
December 2013
Please read Cautions and warnings and
Page 5 of 8
Important notes at the end of this document.
EPCOS [ EPCOS ]
