Sensofoil® Membrane Potentiometer

Sensofoil® FR4-Hybrid

Resistive track printed on circuit board – integrated metal strip for higher temperature resistance and longer life cycle

The Hybrid technology already mentioned for Sensofoil® potentiometers on PET can also be implemented on circuit boards. The PET layer with printed resistive track is simply replaced by the FR4 material. The Sensofoil® FR4-Hybrid was specifically developed for high operating temperatures of up to +105°C. The integrated, flexible metal strip is what makes this potentiometer particularly robust.

How does it work?

The operating principle of the Sensofoil® PET-Hybrid can be applied to the Sensofoil® FR4-Hybrid as well. The base membrane is replaced by a circuit board, providing further connecting and mounting options. The FR4 board can also be equipped based on customer requirements.

Technical Details

  • ► Linear and radial designs
  • ► Operating temperature: -25°C to +85°C
  • ► Storage temperature: -25°C to +85°C
  • ► Length up to 500mm
  • ► Up to 500,000 operations
  • ► Linearity: 2% linear design
  • ► IP Rating: up to IP54
  • ► Flat design starting at 0.9mm


  • ► For high operating temperatures
  • ► Particularly robust
  • ► Operation possible by hand or wiper
  • ► Easily adapted to customer specific design


  • ► Collector membrane as wiper tap
  • ► Metal strip (Hybrid technology)
  • ► Spacers
  • ► Circuit board with potentiometer resistive track
  • ► Adhesive film or various connector options

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