Potentiometers

A potentiometer is a variable resistor. Potentiometers enable you to regulate and change the current flowing through a circuit. Potentiometers can also be called pots or potmeters.


Potentiometers have two terminals that are fixed to a resistive element (the track). The resistive element is typically wirewound or made from carbon, cermet or conductive plastic. The third terminal is connected to the wiper, which is a sliding contact. As the wiper moves along the track, the resistance changes and the current flowing through the circuit changes.


Types of potentiometer


  • Rotary potentiometers are easily controlled by turning a spindle or a knob. Rotary potentiometers can be single turn or multiturn.

  • Slide potentiometers are also known as slider potentiometers or fader potentiometers. To use a slide potentiometer, it’s simply a case of sliding a fader along a straight track to change the resistance.

  • Trimmer potentiometers, sometimes called trimpots, are used to calibrate and fine-tune circuits and can be mounted straight onto a PCB (printed circuit board). Trimmer potentiometers are easy to adjust with a screwdriver.

  • String potentiometers (or string pots) take movement and transform it into an electrical signal.

  • Membrane potentiometers are completely flat. Membrane potentiometers change their resistance when pressure is applied to the membrane.

For potentiometers with a linear taper, the resistance between one end of the track and the wiper varies at a constant rate. If you turn the potentiometer halfway or slide the fader halfway along the track, the resistance will be half of the total resistance. Linear taper potentiometers are typically used in applications such as light dimmer switches.


For logarithmic taper potentiometers, the resistance does not vary at a constant rate. The level of resistance moves exponentially up or down. A potentiometer that has been turned or moved halfway along its track, will not produce resistance that is half the total resistance. Logarithmic potentiometers are commonly used for audio applications.


Need ’Digital Potentiometers’?


Digital Potentiometers

Looking for peripherals for your potentiometer?


Potentiometer Knobs


Potentiometer Accessories


Potentiometer Mounting Nuts


...
Read more Read less

Filters

Viewing 1 - 20 of 44 products
Results per page
Description Price Maximum Resistance Potentiometer Type Number of Turns Number of Gangs Mounting Type Power Rating Shaft Diameter Electrical Taper Mounting Hole Diameter Element Material Termination Style Tolerance Series Shaft Length
RS Stock No. 475-6072
Mfr. Part No.M-22E10-050 10K
SGD29.25
Each
units
10kΩ Rotary 10 - Panel Mount 2W 6 mm Linear - - Solder Lug ±5% - -
RS Stock No. 475-6044
Mfr. Part No.M-22E10-050 2K
SGD33.25
Each
units
2kΩ Rotary 10 - Panel Mount 2W 6 mm Linear - - Solder Lug ±5% M-22E10 -
RS Stock No. 602-3699
Mfr. Part No.JC10-000-502N
SGD26.64
Each
units
5kΩ Rotary 1 - Through Hole 1/8W 3 mm Linear - - Pin ±20% - -
RS Stock No. 475-6038
Mfr. Part No.M-22E10-050 1K
SGD22.93
Each
units
1kΩ Rotary 10 - Panel Mount 2W 6 mm Linear - - Solder Lug ±5% M-22E10 -
RS Stock No. 602-3756
Mfr. Part No.MC1003-000-502
SGD56.85
Each
units
5kΩ Rotary 3 - Panel Mount 19/100W 3 mm Linear - - Solder Lug ±20% - -
RS Stock No. 475-6101
Mfr. Part No.M-22E10-050 100K
SGD22.88
Each
units
100kΩ Rotary 10 - Panel Mount 2W 6 mm Linear - - Solder Lug ±5% - -
RS Stock No. 182-5678
Mfr. Part No.JP-30B 2K
SGD55.91
Each
units
2kΩ Rotary 1 1 - 1.5W 6 mm Linear - Cermet Solder ±2% JP-30B 17mm
RS Stock No. 182-5653
Mfr. Part No.M-22E10 20K
SGD26.17
Each
units
20kΩ Rotary 10 1 - 2W 6 mm Linear - Wirewound Solder ±5% M 15mm
RS Stock No. 182-5679
Mfr. Part No.JP-30B 1K
SGD55.91
Each
units
1kΩ Rotary 1 1 - 1.5W 6 mm Linear - Cermet Solder ±2% JP-30B 17mm
RS Stock No. 182-5644
Mfr. Part No.M-22S10 2K
SGD34.49
Each
units
2kΩ Rotary 10 1 - 2W 6 mm Linear - Wirewound Solder ±5% M 15mm
RS Stock No. 182-5667
Mfr. Part No.M-1303 10K
SGD35.09
Each
units
10kΩ Rotary 3 1 - 2W 3 mm Linear - Wirewound Solder ±5% M 10mm
RS Stock No. 182-5654
Mfr. Part No.M-22E10 1K
SGD26.17
Each
units
1kΩ Rotary 10 1 - 2W 6 mm Linear - Wirewound Solder ±5% M 15mm
RS Stock No. 182-5681
Mfr. Part No.JP-30 2K
SGD57.09
Each
units
2kΩ Rotary 1 1 - 1.5W 4 mm Linear - Cermet Solder ±2% JP-30 17mm
RS Stock No. 475-6016
Mfr. Part No.M-22E10-050 200
SGD30.65
Each
units
200Ω Rotary 10 - Panel Mount 2W 6 mm Linear - - Solder Lug ±5% - -
RS Stock No. 182-5656
Mfr. Part No.M-1305 5K
SGD35.09
Each
units
5kΩ Rotary 5 1 - 2W 3 mm Linear - Wirewound Solder ±5% M 10mm
RS Stock No. 182-5652
Mfr. Part No.M-22E10 2K
SGD26.17
Each
units
2kΩ Rotary 10 1 - 2W 6 mm Linear - Wirewound Solder ±5% M 15mm
RS Stock No. 182-5651
Mfr. Part No.M-22E10 50K
SGD26.17
Each
units
50kΩ Rotary 10 1 - 2W 6 mm Linear - Wirewound Solder ±5% M 15mm
RS Stock No. 602-3734
Mfr. Part No.JC22E 5K 1%
SGD67.38
Each
units
5kΩ Rotary 1 - Panel Mount 1/2W 6 mm Linear - - Solder Lug ±20% - -
RS Stock No. 182-5640
Mfr. Part No.M-22S10 5K
SGD34.49
Each
units
5kΩ Rotary 10 1 - 2W 6 mm Linear - Wirewound Solder ±5% M 15mm
RS Stock No. 475-6050
Mfr. Part No.M-22E10-050 5K
SGD31.72
Each
units
5kΩ Rotary 10 - Panel Mount 2W 6 mm Linear - - Solder Lug ±5% - -