WIMA - Competence in Capacitors
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Film Capacitors – Made in Germany

Metallized capacitors

  • Overview
  • MKS 2
  • MKP 2
  • MKS 4
  • MKP 4
  • Applications

In the case of metallized capacitors, thin layers of aluminium (approx. 0.03 µm) are vacuum-deposited on the insulating film as conducting electrodes. In the case of a breakdown, the short circuit current causes the thin metal coating to evaporate around the point of failure and an insulating area is formed. The capacitor remains intact (self-healing). Due to their construction principle metallized capacitors stand out for their very favourable capacitance/volume ratio.

Metallized WIMA capacitors in PCM 5 mm - 52.5 mm are available in two dielectric versions. Capacitors with a Polyester dielectric (PET) are suitable for general applications such as coupling, decoupling and by-passing. By making use of ultra thin film and appropriate manufacturing experience, it has been possible to achieve high capacitance values in very small box sizes. Polypropylene capacitors (PP) are used in the high frequency field. This includes resonant circuits, power supplies, deflection circuits, oscillator circuits and audio equipment.

Upon customer request, larger box sizes can be supplied in 4-pin versions. Types with terminating plates can also be manufactured on request. The advantage of this method of construction, besides the improved mechanical stability of the component on the board, is the excellent electrical contact reliability.

WIMA capacitors are produced with the proven box technology using solvent-resistant, flame-retardant plastic cases according to UL 94 V-0. They are environmentally compatible with the RoHS 2011/65/EU regulations of the European Union.

PCM 5 - 52.5 mm
metallized
MKS 2
MKP 2
MKS 4
MKP 4
Dielectric Polyester film Polypropylene film Polyester film Polypropylene film
Test category in accordance with IEC 55/100/21 55/100/56 55/100/56 55/100/56
Temperature range Ur = 50 VDC: -55°C to +105°C
Ur > 63 VDC: -55°C to +125°C
-55°C to +100°C Ur = 50 VDC: -55°C to +105°C
Ur > 63 VDC: -55°C to +125°C
-55°C to +105°C
Dissipation factor tanδ at 1 kHz and +20°C < 8 x 10-3
>1.0 µF:< 10 x 10-3
< 5 x 10-4 < 8 x 10-3
> 1µF:< 10 x 10-3
< 6 x 10-4
Insulation resistance at +20°C* > 5 x 103 MΩ
>0.33µF:>1000 sec
> 1 x 105 MΩ > 5 x 103 MΩ
> 0.33µF: >1500 sec
> 1 x 105 MΩ
>0.33µF: >30000 sec
Voltage ranges VDC
Capacitances
..50.. ..63.. .100. .250. .400. .630. ..63.. .100. .250. .400. .630. .800. 1000 ..50.. ..63.. .100. .250. .400. .630. 1000 1500 2000 .100. .250. .400. .630. 1000 1250
1000 pF 5 5 5 5 7.5 10 10    
1500 pF    
2200 pF    
3300 pF    
4700 pF 15    
6800 pF    
0.01 µF 5 5 5 5 5 5 5 5   7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 15
0.015 µF   15 22.5 10
0.022 µF   15 15
0.033 µF  
0.047 µF   22.5 22.5
0.068 µF   10 27.5 10
0.1 µF 7.5 7.5 15 10 15
0.15 µF 22.5 27.5 15 22.5 27.5
0.22 µF 10 37.5 10 10
0.33 µF 5 15 22.5 15 15 22.5 27.5
0.47 µF 10 27.5 22.5
0.68 µF 15 22.5 37.5 27.5
1.0 µF 27.5 22.5 22.5   37.5
1.5 µF 10 37.5 52.5 27.5 37.5
2.2 µF 10 15 22.5 27.5  
3.3 µF 52.5 27.5 27.5
4.7 µF 15 22.5 27.5 37.5   37.5
6.8 µF 37.5
10 µF 15 22.5 27.5 37.5 52.5    
15 µF 22.5 37.5 37.5
22 µF 27.5 27.5 37.5 52.5 37.5
33 µF    
47 µF   52.5  
68 µF
100 µF 37.5 37.5 52.5
150 µF 37.5    
220 µF  
330 µF   52.5
470 µF 52.5 52.5
680 µF  
Capacitance tolerances ±20%, ±10%, ±5% ±20%, ±10%, ±5% ±20%, ±10%, ±5% ±20%, ±10%, ±5%
MKS 2
MKP 2
MKS 4
MKP 4
New box sizes, values and range.
The values of the WIMA MKM 2 and WIMA MKM 4 ranges according to the WIMA main catalogue 2009 are still available on request.
* The insulation resistance data refers to the lowest rated voltage of each range.

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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