Product Name : Ring Membrane Potentiometer
Product Description

Ring Membrane Potentiometer

6 to 355-degree stepless output

Ring membrane potentiometer also known as rotary position sensor, is constructed with two layers of PET film. The top layer is printed with conductive silver, the bottom layer is printed with conductive terminal first and cover with resistive carbon. By combining the layers with an adhesive spacer, the sensor stayed open circuit. The sensing cell close circuited and output resistance value when pressure is applied to the corresponding position of the sensor. The closer to the connected terminal, the lower the resistance outputs.


CERADEX offers thru ring membrane potentiometer for customers to prototyping and provides customized solutions for projects' requests.

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Product Introduction
thru mode ring membrane potentiometer features is thru position sensing with lightweight and robust


  • Thru mode position sensing
  • Stylus, finger, gloves no problem
  • Flexible and lightweight
  • Ultra-thin - 0.33 mm
  • Instant responding sensitivity
  • Low actuation force
  • Low power consumption
  • Robust - Up to 10M actuations
  • Simple and easy to integrate



Consumer electronics

  • Menu navigation
  • Volume control


  • Fluid control and monitoring
  • Medical device control panel


  • Production control panel
  • Production flow management



rotary thru membrane potentiometer with 5mm diameter sensing area
Model PTX2T
Active area Ø 35.8mm - Ø 40.4mm (diameter)
Position resolution ≤ 5°
Nominal thickness 0.33 mm
FSR length 59.5 mm
Datasheet download  PTX2T datasheet.pdf