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About WIMA

WIMA has a long tradition as manufacturer of the passive electronic component film capacitor. It was founded by Wilhelm Westermann in Unna/Westphalia in 1948. Within only a few years he extended his company into the leading specialists in capacitor production. WIMA is still a privately owned company and the president today is Dipl.-Ing. Dipl.-Wirtsch.-Ing. Wolfgang Westermann.


WIMA is exclusively located in Germany and has four sites there: The Sales Department is in Mannheim, most modern production facilities and R&D are situated in Aurich, Unna and Berlin.
Continual technical progress and expansion have made WIMA the first address for high-quality film capacitors worldwide.

WIMA Group is specialised in the product and business areas:

  • SMD film capacitors size codes 1812 - 6054
  • Film/foil capacitors in PCM 2.5 - 15 mm
  • Metallized film capacitors in PCM 2.5 - 52.5 mm
  • Pulse capacitors in PCM 7.5 - 52.5 mm
  • Polypropylene RFI capacitors in PCM 7.5 - 52.5 mm
  • Metallized paper RFI capacitors in PCM 10 - 27.5 mm
  • Filter capacitors
  • Snubber capacitors
  • GTO capacitors
  • DC-Link capacitors
  • PowerBlocks of Supercaps
WIMA’s strength lies in the design and production of customized products requiring experience and highly developed expertise. Solutions can therefore be offered to all customer needs.

Major customer groups are in automotive, consumer and industrial electronics and the lighting industry. Among others there are well-known and demanding customers like Bosch and Siemens with supply of worldwide facilities.


Having a strong focus on innovation WIMA has since the very first day set milestones in capacitor technology.



WIMA Product Highlights: