Film Capacitors – Power Electronic Capacitors
MKP DC-LSI
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B25631*
October 2013
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CAP FILM P PM
Film Capacitors – Power Electronic Capacitors
MKP DC-LSI
B25631*
EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Film Capacitors – Power Electronic Capacitors
MKP DC-LSI
B25631*
Construction and general data
Characteristics
Capacitance tolerance
tan
δ
o
Θ
stg
t
LD (co)
Fit rate
Minimum temperature
Θ
min.
Maximum temperature
Θ
max.
Storage temperature
Θ
stg
Maximum hotspot temperature
Θ
hs
Maximum hotspot temperature
Θ
hs
for 100 000 h
expected lifetime
Climatic category
Maximum altitude
K: ±10%
2 • 10-4
–55 ... +85 °C
100 000 h
300
–55 °C
+70 °C
–55 ... +85 °C
+75 °C
+65 °C
55/70/56
2000 m above sea level
(derating curves available upon request)
Test data
Voltage between terminals V
TT
Voltage between terminals and aluminum can V
TC
Dissipation factor tan
δ
(100 Hz)
Life test
Cooling
Degree of protection
Design data
Impregnation
Mounting
Max. torque terminal
Reference standards
IEC 61071
RoHS compliance
UL 94 V0
1.5 • V
N
, 10 s
2 V
i
+ 1000 V, 10 s
≤
1.0 x 10¯³
According to IEC 61071
Naturally air-cooled (or forced air cooling)
Indoor mounting
Resin filling: Non PCB, hard polyurethane (Dry type)
Lateral brackets
8 Nm
CAP FILM P PM
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 9
October 2013
Film Capacitors – Power Electronic Capacitors
MKP DC-LSI
B25631*
Metallized polypropylene film capacitors – Plastic case for general purpose applications
B2563X
Male M8 terminals
Lateral brackets for fixing are standard for all types.
CAP FILM P PM
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 9
October 2013
Film Capacitors – Power Electronic Capacitors
MKP DC-LSI
B25631*
Terms and Definitions
The following definitions apply to power capacitors according to IEC 61071.
Rated capacitance
C
R
Nominal value of the capacitance at 20 °C and measuring frequency range of 50 to 120 Hz.
Rated DC voltage
V
R
Maximum operating peak voltage of either polarity but of a non-reversing type wave form, for which
the capacitor has been designed, for continuous operation.
Ripple voltage
V
r
Peak-to-peak alternating component of the unidirectional voltage.
Maximum surge voltage
V
s
Peak voltage induced by a switching or any other disturbance of the system which is allowed for a
limited number of times and duration.
- Maximum duration: 50 ms / pulse
- Maximum number of occurrences: 1000 (during load)
Insulation voltage
V
i
Rms rated value of the insulation voltage of capacitive elements and terminals to case or earth. When
it is not specified in the product data sheet, the insulation voltage is at least:
V
i
=
V
R
2
Maximum rate of voltage rise (dv/dt)
max
Maximum permissible repetitive rate of voltage rise of the operational voltage.
Maximum current
I
max
Maximum rms current for continuous operation.
Maximum peak current
Î
pk
Maximum permissible repetitive current amplitude during continuous operation.
Maximum peak current (Î
pk
) and maximum rate of voltage rise (dV/dt)
max
on a capacitor are related as
follows:
Î
pk
= C · (dv/dt)
max
Maximum surge current
Î
s
Admissible peak current induced by a switching or any other disturbance of the system which is
allowed for a limited number of times (1000 times) and duration (50 ms / pulse).
Î
s
= C · (dv/dt)
s
Ambient temperature
Θ
A
Temperature of the surrounding air, measured at 10 cm distance and 2/3 of the case height of the
capacitor.
CAP FILM P PM
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 9
October 2013
Film Capacitors – Power Electronic Capacitors
MKP DC-LSI
B25631*
Lowest operating temperature
Θ
min
Lowest permitted ambient temperature at which a capacitor may be energized.
Maximum operating temperature
Θ
max
Highest permitted ambient temperature at which a capacitor may be energized.
Hot-spot temperature
Θ
hs
Temperature zone inside of the capacitor at hottest spot.
Temperature hot-spot / ambient
ΔΘ
Temperature difference between the hottest spot in the capacitor
Θ
hs
and the ambient temperature
Θ
A
.
Tangent of the loss angle of the dielectric
tan
δ
0
The loss factor of the dielectric (polypropylene) represents the portion of the losses in the process of
polarization/depolarization of the dielectric. It is considered constant in the whole operational
frequency range of the capacitor.
Tangent of the loss angle of a capacitor
tan
δ
Ratio between the equivalent series resistance and the capacitive reactance of a capacitor at a
specified sinusoidal alternating voltage, frequency and temperature.
Series resistance
R
s
The sum of all Ohmic resistances occurring inside the capacitor. It is largely independent of frequency.
Thermal resistance
R
th
The thermal resistance indicates by how many degrees the capacitor temperature at the hot spot rises
in relation to the dissipation losses.
Maximum power loss
P
max
Maximum permissible power dissipation for the capacitor’s operation.
P
max
=
Θ
hs
− Θ
A
ΔΘ
=
R
th
R
th
Self inductance
L
self
The sum of all inductive elements which are contained in a capacitor.
Resonance frequency
f
r
The lowest frequency at which the impedance of the capacitor becomes minimum.
f
r
=
1
2
π
⋅
L
self
⋅
C
N
CAP FILM P PM
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 9
October 2013
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