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Basic Technical Data for Capacitors
Construction of Plastic Film Capacitors 
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Marking of WIMA Capacitors

SMD Capacitors

 

Marking of WIMA SMD capacitors was gradually ceased as of July 2003. Identification is possible by the labelling of packages and delivery notes respectively.

 

 

Through-Hole Capacitors

 

In general, WIMA through-hole capacitors are marked on the front side of the box in plain text with brand name, capacitor series, capacitance, nominal voltage, date code and tolerance. Capacitors with PCM smaller than 15 mm will have the tolerance indicated on the reverse. Standard tolerance 20% is not marked.

PCM 2.5mm and
PCM 5mm film/foil
     
PCM 5mm metallized *    
Capacitance Code

0.01 µF

0.015 µF

0.022 µF

0.033 µF

0.047 µF

0.068 µF

10n

15n

22n

33n

47n

68n

0.1 µF

0.15 µF

0.22 µF

0.33 µF

0.47 µF

0.68 µF

µ1

µ15

µ22

µ33

µ47

µ68

1.0 µF

1.5 µF

2.2 µF

3.3 µF

4.7 µF

6.8 µF

1µ5

2µ2

3µ3

4µ7

6µ8

10 µF 10µ
PCM 7.5 and 10mm      
PCM 15 through 37.5mm   or    
       
 

The series name MKS 2, FKP 3 etc. is composed as follows:

 

The first letter indicates the type of construction

 

"M" = metallized construction
"F" = film/foil construction (brands of other manufacturers are missing this letter)

 

The second letter "K" stands for plastic film capacitors.

 

The third letter indicates the dielectric film used

 

"S" = Polyester / PET (other manufacturers are using "T")
"P" = Polypropylene / PP

 

The numbers following are WIMA-specific markings.

 

Metallized paper capacitors are marked with "MP".

 

The cases of 2.5 mm and 5 mm capacitors are too small to imprint with the series type (i.e. MKS 2, FKS 2 etc.). Instead, these capacitors must be identified by different colours of the marking inks and epoxy fill.

 

PCM 2.5 mm Case Marking Example Notice
FKP 02 Red Black Yellow epoxy fill
MKS 02 Red Silver Yellow epoxy fill
PCM 5 mm Case Marking Example Notice
FKS 2 Red Silver Yellow epoxy fill
FKP 2 Red Black Yellow epoxy fill

MKS 2

Red Silver/White* Red epoxy fill
MKP 2 Red Black* Red epoxy fill
 
* As of September 2005 WIMA changes step by step the metallized capacitors in PCM 5 mm to top marking. Following series are concerned:

WIMA MKS 2: (Marking White)
WIMA MKP 2: (Marking Black)