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Description:

Electronic symbol
Potentiometer symbol Europe.svg (International)
Potentiometer symbol.svg (US/Canada)

An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VCC to an outer pin, GND to the other, and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a variable input from the user!

This pot has a ¼" mounting diameter and has a 10K linear taper. Check the datasheet for dimensional drawings.

Drawing of potentiometer with case cut away, showing parts: (A) shaft, (B) stationary carbon composition resistance element, (C) phosphor bronze wiper, (D) shaft attached to wiper, (E, G) terminals connected to ends of resistance element, (F) terminal connected to wiper.

figure 6
Potentiometer Terminals and Connections
  • 10K ohm potentiometer, linear taper
  • 100,000 Cycle Life
  • 16mm Body
  • Rotational travel: 300 °
  • Static Stop Strength: 90 oz-in
  • Rotational Torque: 0.5 to 1.25 oz-in

Examples

Reference