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Film Capacitors – Made in Germany

Pulse capacitors

  • Overview
  • MKP 10
  • FKP 4
  • FKP 1
  • Applications

An important construction criterion in the manufacture of reliable, self-healing capacitors for pulse applications is the current-carrying capacity of the contacts, i.e. the connection between the terminating wires and the electrodes.

The construction principle of the series WIMA MKP 10 consists of a non-metallized dielectric film and an carrier film metallized on both sides acting as electrode. Thanks to the metallization on both sides, the electrical conductivity is considerably improved and the contact surface between the electrodes and the schoopage layer is doubled. This results in better contact and allows for high current and pulse loading capability. The properties of metallized capacitors such as excellent self-healing and high volume capacitance remain unchanged.

The WIMA FKP 1 series was developed for extremly high pulse loads. It has an internal series connection, the metal foil electrodes being combined with a floating electrode metallized on both sides. The metal foil electrodes are safely contacted on both sides of the end surfaces. At the same time the capacitor is fully self-healing due to the floating electrode metallized on both sides. As regards pulse loading capability, WIMA FKP 1 represents the high-end of capacitor technology.

The WIMA FKP 4 is a range of self-healing film/foil Polypropylene capacitors made with a single metallized plastic film and metal foil electrodes in series connection. This construction features a high volume capacitance and at the same time high pulse loading capability.

WIMA pulse capacitors are suitable for high pulse and high frequency applications in e.g. switch mode power supplies, TV and monitor sets, lighting industry, audio/video equipment, converters in drives and power electronics or in electronic ballasts. They are available with capacitances from 100 pF through 47 µF and with voltage ratings from 100 VDC through 6000 VDC.

For high current ratings
with double-metallized film electrodes with metal foil electrodes. internally series-connected with metal foil electrodes. internally series-connected
MKP 10
FKP 4
FKP 1
Dielectric Polypropylene film Polypropylene film Polypropylene film
Test category in accordance with IEC 55/100/56 55/100/56 55/100/56
Temperature range -55°C to +105°C -55°C to +105°C -55°C to +105°C
Dissipat. factor tanδ at 1 kHz and +20°C < 6 · 10-4 < 5 · 10-4 < 5 · 10-4
Insulation resistance at +20°C* > 1 x 105 MΩ
> 0.33µF:> 30000 sec
> 1 x 105 MΩ
> 0.1µF:> 10000 sec
> 1 x 105 MΩ
> 0.1µF:> 30000 sec
Voltage ranges VDC
Capacitances
100 250 400 630 850 1000 1600 2000 2500 3000 400 630 1000 1250 1600 2000 400 630 1000 1250 1600 2000 4000 6000
100 pF 15 15 15
150 pF
220 pF
330 pF
470 pF 22.5 22.5
680 pF
1000 pF     7.5 7.5 7.5 7.5 10 10 15         15 15 15 15 15
1500 pF             22.5
2200 pF            
3300 pF     15         22.5
4700 pF             22.5 27.5 27.5
6800 pF            
0.01 µF 7.5 7.5 10 10 15 22.5 22.5 15 15 15 15 22.5 22.5 27.5
0.015 µF 10 22.5 22.5 27.5 37.5 37.5
0.022 µF 15 15 27.5 22.5
0.033 µF 22.5 22.5 27.5 27.5 37.5
0.047 µF 10 15 22.5 27.5 27.5 27.5 22.5 27.5 37.5
0.068 µF 10 10 15 22.5 22.5 22.5 22.5 27.5 37.5
0.1 µF   27.5 27.5 37.5 37.5
0.15 µF 15 15 22.5 27.5 27.5 37.5
0.22 µF 27.5 37.5 37.5 27.5 27.5 37.5 52.5 52.5
0.33 µF 22.5 27.5 37.5 37.5 37.5
0.47 µF 27.5 37.5 52.5
0.68 µF 22.5 22.5 37.5 52.5
1.0 µF 27.5 37.5 37.5 37.5   52.5
1.5 µF 27.5 27.5 52.5 52.5 37.5     52.5
2.2 µF 37.5 52.5       52.5
3.3 µF 37.5 52.5         52.5
4.7 µF 52.5 52.5          
6.8 µF 37.5 37.5
10 µF 52.5
15 µF
22 µF 52.5 52.5
33 µF
47 µF 52.5
Capacitance tolerances ±20%, ±10%, ±5% ±20%, ±10%, ±5%, (other tolerances*) ±20%, ±10%, ±5%, (other tolerances*)
MKP 10
FKP 4
FKP 1
New box sizes.

* The insulation resistance data refers to the lowest rated voltage of each range.
* Closer tolerances are available subject to special enquiry.
The values in the tables refer to the smallest PCM of the respective capacitance value. For larger PCMs please refer to the detailed data sheets of the particular series.

About us

As the world's leading manufacturer, we develop and manufacture high-quality film capacitors for professional use in all areas of electronics.

As privately owned company since 1948 we are producing exclusively in Germany. As specialist in film capacitors our goal is to achieve customer satisfaction in terms of quality, innovation and service.

Our strength lies in the production and design not only of standard but also of customized products requiring experience and highly developed expertise. Solutions can therefore be offered to all customer needs.

Contact

WIMA GmbH & Co. KG
Besselstr. 2 – 4
68219 Mannheim

Phone: +49 621 86295-0
Fax: +49 621 86295-48

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WIMA - Competence in Capacitors

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