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Overview

 

Snubber MKP

 

Snubber FKP

 

PDF-File

 

 

WIMA Snubber MKP Page 2
 
Snubber MKP Capacitors for Pulse Applications with Double-Sided Metallized Electrodes, Schoopage Contacts and Internal Series Connection
 
Special Features

Pulse duty construction
Self-healing
Particularly reliable contact
configurations:

4-pin versions and screwable plate

connections
Internal series connection
from 400VAC
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:
Construction WIMA Snubber MKP
Encapsulation:
Solvent-resistant, flame-retardent plastic case with epoxy resin seal, UL 94 V-0
Terminations:
Tinned wire or plates
Marking:
Colour: Red. Marking: Black. Epoxy resin seal: Red
 
Electrical Data

Capacitance range: 0.047 µF to 25 µF
Rated voltages:
250VDC, 400VDC, 630VDC, 1000VDC, 1600VDC, 2000VDC, 3000VDC
Capacitance tolerances:
±20%, ±10%, ±5% (other tolerances are available subject to special enquiry)
Operating temperature range:
-55°C to +100°C
Climatic test category:
55/100/56 in accordance with IEC
Insulation resistance
at +20°C:
C < 0.33 µF: > 1 x 105 M
(mean value: 5 x 105 M)
C > 0.33 µF: > 30000 sec (MxµF)
(mean value: 100000 sec)
Measuring voltage: 100V/1 min.

Test voltage: 2 sec

L < 2000VDC 3000VDC
< 41.5
41.5
56
1.6 Ur
1.4 Ur
1.2 Ur
1.2 Ur
1.2 Ur
1.2 Ur
Dissipation factors at +20°C: tan
 

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 > 300000 hours
Failure rate < 1 fit (0.5 x Ur and 40°C)
Specific dissipation:

Box size*
W x H x L
in mm
Specific dissipation in Watts per K
above the ambient temperature
19x31x56
23x34x56
27x37.5x56
33x48x56
37x54x56
0.068
0.079
0.092
0.122
0.142
* other box sizes

Graphs:

Versions:
at f C < 0.1 µF 0.1 µF < C < 1.0 µF C > 1.0 µF
1kHz
10kHz
100kHz
< 3 x 10-4
< 4 x 10-4
<
15 x 10-4
< 3 x 10-4
< 6 x 10-4
-
< 3 x 10-4
-
-
Maximum pulse rise time: for pulses equal to the rated voltage
Capacitance
µF
max. pulse rise time V/µsec at TA < 40°C
250VDC 400VDC 630VDC 1000VDC 1600VDC 2000VDC 3000VDC
0.047...0.22
0.33...0.68
1.0...2.2
2.5...6.8
7.0...10
15...25
500
300
200
80
50
35
500
400
200
100
70
50
900
700
400
150
75
-
1400
900
400
300
-
-
1400
900
500
400
-
-
1400
900
500
-
-
-
1400
900
500
-
-
-
 
Mounting Recommendation   Packing

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. 5Nm.

 

 

Example for ordering / Part number:

 

Transportation-safe packing in cardboard boxes.

Packing quantities may vary depending on the plate version.


 

 

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