Cefem Power is the historic branch of the group. Created in 1987 in the Southern Ardèche region of France by Georges Fangier, the original "Cefem" began by developing expertise in medium frequency magnetic components. Gradually, the business unit integrated more and more magnetic components intended for powerful electronics, capable of modulating energy for next-generation applications, and this is what led to its rapid expansion.

Over time, Cefem Power's objective became clearer and the goal was to become the European leader in passive components for powerful electronics.

1987: CEFEM is founded in the Ardèche region of France

2005: Acquisition of ASB (Atelier Spécial Bobinage), a production unit in Grenoble making toric components.

2005: Creation of Cefem Romania, a production unit in Dumbraveni. This plant was intended to serve customers with low added value products in large scale series and whose production sites have switched to Eastern Europe.

2014: Acquisition of SCR, a company manufacturing film capacitors since 1961 in Châteauroux in the Berry region of France. This logically led us to expand our range of products with the film capacitors manufactured by the acquired company. SCR capacitors are now marketed under the name "Cefem Power".

2016: Acquistion of Transrail Boige and Vignal. The consistent progress continues with the acquisition of a company recognised for its expertise in more powerful magnetic components, in particular in the rail market, the group’s main sector of activity.

Today, the Cefem Power business unit consists of:

  •     6 production sites: Saint Michel de Boulogne / Grenoble / Lyon / China / Romania/ Châteauroux
  •     3 research offices: Saint Michel de Boulogne and Lyon for magnetic components, Châteauroux for film capacitors
  •     150 employees

Working in all sectors of powerful electronics, especially:

  •     Rail
  •     Aeronautics
  •     Energy (Renewable and UPS)
  •     Industry
  •     Naval