104
01.19
D
WIMA Snubber MKP
Snubber MKP Capacitors for Pulse Applications with Double-Sided
Metallized Electrodes and Internal Series Connection. Capacitances
from 0.047 mF to 8.0 mF. Rated Voltages from 700 VDC to 3000 VDC.
Special Features Electrical Data
˜ Pulse duty construction
˜ Self-healing
˜ Particularly reliable contact-
configurations: 4-pin versions and
screwable plate connections
˜ Internal series connection
˜ Very low dissipation factor
˜ Negative capacitance change
versus temperature
˜ According to RoHS 2011/65/EU
Typical Applications
For high pulse and high frequency
applications requiring extremely
reliable contacts e.g.
˜ IGBT-applications
Construction
Dielectric:
Polypropylene (PP) film
Capacitor electrodes:
Double-sided metallized plastic film
Internal construction:
Plastic film
Metal contact layer
(schoopage)
Terminating plate
Electrode carrier
plastic film metallized
on both sides
Plastic film metallized
on one side
Encapsulation:
Solvent-resistant, flame-retardant plastic
case with epoxy resin seal, UL 94 V-0
Terminations:
Tinned wire or plates.
Marking:
Colour: Red. Marking: Black.
Mounting Recommendation
Excessive mechanical strain, e.g. pressure
or shock onto the capacitor body, is to be
avoided during mounting and usage of
the capacitors. When fixing the plates the
screw torque is to be limited to max. 5 Nm.
For further details and graphs please
refer to Technical Information.
Packing
Packing units at the end of the catalogue.
Packing quantities may vary depending on
the plate version.
Capacitance range: 0.047 mF to 8.0 mF
Rated voltages: 700 VDC, 850 VDC,
1000 VDC, 1250 VDC, 1700 VDC,
2000 VDC, 2500 VDC, 3000 VDC
Capacitance tolerances:
±20%, ±10%, ±5% (other tolerances are
available subject to special enquiry)
Operating temperature range:
–55) C to +100) C
Insulation resistance at +20+ C:
C T 0.33 mF: 1 x 105 M¸
C 0.33 mF: 30 000 sec (M¸ x mF)
Measuring voltage: 100 V/1 min.
Test voltage: 2 sec
L
T2000 VDC 2500 VDC 3000 VDC
41.5 1.6 Ur 1.4 Ur 1.2 Ur
41.5 1.4 Ur 1.4 Ur 1.2 Ur
56 1.2 Ur 1.2 Ur 1.2 Ur
Dissipation factors at + 20) C: tan d
at f C T 0.1 mF 0.1 mF < C T 1.0 mF C > 1.0 mF
1 kHz T 6 x 10-4 T 6 x 10-4 T 6 x 10-4
10 kHz T 6 x 10-4 T 6 x 10-4 –
100 kHz T 15 x 10-4 – –
Maximum pulse rise time:
Capacitance max. pulse rise time V/msec at TA < 40) C
mF
700 VDC 850 VDC 1000 VDC 1250 VDC 1700 VDC 2000 VDC 2500 VDC 3000 VDC
0.047 ... 0.22 1150 1150 1800 1800 1800 1800 1800 1800
0.33 ... 0.68 900 900 1150 1150 1150 1150 1150 1150
1.0 ... 2.2 500 500 500 500 650 650 650 650
2.5 ... 6.8 190 190 390 390 500 – – –
7.0 ... 8.0 90 90 – – – – – –
for pulses equal to the rated voltage
Climatic test category:
55/100/56 in accordance with IEC
Voltage derating:
A voltage derating factor of 1.35 % per K
must be applied from +85+ C for DC
voltages and from +75+ C for AC
voltages
Reliability:
Operational life 300 000 hours
Failure rate 1 fit (0.5 x Ur and 40) C)
Specific dissipation:
Box size* Specific dissipation in Watts per K
W x H x L in mm above the ambient temperature
19 x 31 x 56 0.068
23 x 34 x 56 0.079
27 x 37.5 x 56 0.092
33 x 48 x 56 0.122
37 x 54 x 56 0.142
* other box sizes see page 11.