Retired Product

This product has been retired from our catalog and is no longer for sale. This page is made available for those looking for datasheets and the simply curious.

Creative Commons images are CC BY 2.0

Description: Replacement: None. We don’t carry a direct replacement for this sensor but check out the flex/force category for more softpots, flex sensors and the like. This page is for reference only.

When you need to track movement in a volatile environment, HotPot provides a thin and sealed form-factor with operating temperature tolerances of -40 to +85C. The HotPot is the preferred product for industrial and outdoor applications. By pressing down on various parts of the strip, the resistance linearly changes from 100Ohms to 20,000Ohms allowing the user to very accurately calculate the relative position on the strip. Can be used as an accurate positional indicator for CNC head positioning, variable user input (volume level input for example), straight user input (multiple button areas translate to given resistance levels), and many other applications.

The HotPots are ideal for higher temperature environments, but many users also find that the HotPots which are made out of a impregnated fiberglass material, ‘feel’ better than the SoftPots which are made out of a polyester base. If you’re planning on using these pots with finger contact (versus with the actuator), you may want to consider using the HotPot line.

Unit comes with adhesive backing. Connector is 0.1" spaced and bread board friendly.

Note: These potentiometers work great with a finger, or stylus. For premium repeatability, the wiper listed below is perfect for machine and object positioning.


  • Length [mm]: 500 (3.937")
  • Resistance: 20 kOhm
  • Resistance Tolerance: ?20%
  • Linear Tolerance: ?3%
  • Temp Range: -40?C to +85?C standard

Customer Comments

  • 500mm = 3.937" ??
    Must be some new system of measurement I hadn’t heard of.
    Judging by the pictures I am guessing this would be closer to 19"…no?

  • I agree that the surface of the sensor feels good for finger use. However, I have found that the amount of pressure needed to make a connection between the resistive layer and the conductor is well more than I had hoped; I have to press far too hard for fast play on the sensor. So, if you are looking for low physical actuation force (for play on the sensor with a light touch), you might want to try the normal Softpot line. Though I haven’t tested them, the actuation force listed in the spec sheet is lower.

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