Spectra Symbol SoftPot Potentiometers

Spectra Symbol SoftPot Potentiometers are soft membrane potentiometers or linear position sensors designed to control systems with precision or track position and acquire the preferred output. These sensors feature 3M Pressure Sensitive Adhesive (PSA), -40°C to 50°C operating temperature range, >1 million lifecycles, and polyester substrate. The SoftPot potentiometers operate at 10kΩ standard resistance, 1kΩ to 100kΩ custom resistance range, ±20% resistance tolerance, and no affect @95% RH, 4hrs 50°C humidity. These potentiometers function in multiple configurations, such as linear, serpentine, and elliptical, and are IP65 dustproof and waterproof. The SoftPot potentiometers are ideal for products that need sealed sensors with a tight form factor, such as medical, dental, space, and robotics.

Features

  • Linear position sensor
  • IP65 dustproof and waterproof (intense spray)
  • Polyester substrate
  • 3M Pressure Sensitive Adhesive (PSA)
  • IP65 IP rating of active area
  • Upon request:
    • Male or female nicomatic or Berg connectors
    • Wiper of 1-3 Newton force to actuate part
    • Higher temperature and/or contactless options are available

Specifications

  • >1 million lifecycle
  • 0.51mm (0.020″) height
  • 10kΩ (lengths >300mm = 20kΩ) standard resistance
  • ±20% resistance tolerance
  • 1Watt maximum @ 25°C, 0.5Watt recommended power rating (depending on size, varies with length and temperature)
  • Actuation force (with a 10mm wide active cavity):
    • 40°C 0.8 to 1.8N
    • 25°C 0.8 to 1.8N
    • 23°C 0.6 to 1.5N
    • 50°C 0.6 to 1.5N
  • Linearity (independent):
    • ±1% and 3% linear
    • ±3% and 5% rotary
  • 1k to 100kΩ custom resistance
  • 8mm to 2000mm effective electrical travel
  • Repeatability:
    • No hysteresis, but with any wiper looseness, some hysteresis will occur
  • Resolution:
    • Analog output is theoretically infinite; affected by variation of contact wiper surface area
  • No affect @ 500VAC for 1 minute dielectric value
  • -40°C to 50°C operating temperature range
  • No affect @ 95% RH, 4hrs 50°C humidity

Applications

  • Dental
  • Medical
  • Space
  • Robotics

Stock Linear SoftPot Dimensional Diagram

Mechanical Drawing - Spectra Symbol SoftPot Potentiometers

Electrical Schematic Diagram

Schematic - Spectra Symbol SoftPot Potentiometers

Spectra Symbol SoftPot Potentiometers