Potentiometers

What is a potentiometer?



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.



Do I need a potentiometer with a linear or logarithmic taper?



The taper you need for your potentiometer depends on the intended application.



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.



What is the difference between a potentiometer and a rheostat?



The key difference is the number of terminals that each device has. Potentiometers have three terminals while rheostats only have two terminals.



Looking for peripherals for your potentiometer?



Potentiometer Knobs

Potentiometer Accessories

Potentiometer Mounting Nuts

...
Read more Read less

Filter

Visar 21 - 40 av 1995 produkter
Resultat per sida
Beskrivning Pris 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-artikelnummer 842-7116
VarumärkeRS PRO
81,89 kr
Each
Enheter
5kΩ Rotary 1 1 Panel Mount 1W 6.35 mm Linear - Wirewound Solder ±20% P25 22mm
RS-artikelnummer 842-7135
VarumärkeRS PRO
64,41 kr
Each
Enheter
2kΩ Rotary 1 1 Panel Mount 0.5W 3.18 mm Linear - Conductive Plastic Solder ±20% P12 19mm
RS-artikelnummer 842-7037
VarumärkeRS PRO
53,66 kr
Each
Enheter
1kΩ Rotary 1 1 Panel Mount 1W 6 mm Linear - Wirewound Solder ±10% P25 25mm
RS-artikelnummer 170-5319
VarumärkeRS PRO
346,05 kr
Each (In a Box of 100)
Enheter
10kΩ Linear 1 4 Surface Mount 1.5W 6.35 mm Linear - - Solder Lug ±10% CLR4000 -
RS-artikelnummer 842-7080
VarumärkeRS PRO
53,35 kr
Each
Enheter
250Ω Rotary 1 1 Panel Mount 1W 6 mm Linear - Wirewound Solder ±10% P25 25mm
RS-artikelnummer 173-0780
VarumärkeRS PRO
1 074,056 kr
Each (In a Box of 5)
Enheter
10kΩ Linear - - Spring Return - - Linear - Conductive Plastic - ±20% WT22 -
RS-artikelnummer 842-7191
VarumärkeRS PRO
1 565,58 kr
Each
Enheter
5kΩ Linear - 1 Spring Return - - Linear - Conductive Plastic - ±20% WT22 -
RS-artikelnummer 842-7015
VarumärkeRS PRO
35,40 kr
Each
Enheter
5kΩ Rotary 1 1 Panel Mount 3W 6.35 mm Linear - Wirewound Solder ±10% P40 68mm
RS-artikelnummer 842-7028
VarumärkeRS PRO
190,88 kr
Each
Enheter
2kΩ Rotary 1 1 Panel Mount 3W 6.35 mm Linear - Wirewound Solder ±10% P40 68mm
RS-artikelnummer 842-7181
VarumärkeRS PRO
763,82 kr
Each
Enheter
10kΩ Linear - 1 - - 4 mm Linear - Conductive Plastic Solder Tab ±30% 149618 28mm
RS-artikelnummer 173-0752
VarumärkeRS PRO
43,208 kr
Each (In a Box of 50)
Enheter
5kΩ Rotary - - Panel Mount 2W 8 mm - - Conductive Plastic Solder ±20% NP32HS -
RS-artikelnummer 173-0767
VarumärkeRS PRO
293,273 kr
Each (In a Box of 50)
Enheter
1kΩ - 1 - Servo Mount 3W 6 mm - - Wirewound Solder ±10% 50WW 21.5mm
RS-artikelnummer 173-0750
VarumärkeRS PRO
36,249 kr
Each (In a Box of 50)
Enheter
50kΩ Rotary 1 - Panel Mount 3W 6.35 mm Linear - Wirewound Solder ±10% P40 68mm
RS-artikelnummer 173-0738
VarumärkeRS PRO
19,937 kr
Each (In a Box of 50)
Enheter
10kΩ - 1 - Panel Mount 3W 6.35 mm - - Wirewound Solder ±10% P40 68mm
RS-artikelnummer 842-7153
VarumärkeRS PRO
439,89 kr
Each
Enheter
1kΩ Rotary 1 1 Servo Mount 3W 6 mm Linear - Wirewound Solder ±10% 50WW 21.5mm
RS-artikelnummer 842-7074
VarumärkeRS PRO
50,01 kr
Each
Enheter
50Ω Rotary 1 1 Panel Mount 1W 6.35 mm Linear - Wirewound Solder ±10% P25 25mm
RS-artikelnummer 173-0747
VarumärkeRS PRO
44,341 kr
Each (In a Box of 50)
Enheter
1kΩ - 10 - Panel Mount 2W 6.35 mm - - Wirewound Solder ±10% NHP22 20.5mm
RS-artikelnummer 842-7204
VarumärkeRS PRO
1 636,71 kr
Each
Enheter
5kΩ Linear - 1 Spring Return - - Linear - Conductive Plastic - ±20% WT22 -
RS-artikelnummer 173-0753
VarumärkeRS PRO
44,087 kr
Each (In a Box of 50)
Enheter
1kΩ - 1 - Panel Mount 1W 6.35 mm - - Conductive Plastic Solder ±20% NP23 20mm
RS-artikelnummer 842-7131
VarumärkeRS PRO
84,37 kr
Each
Enheter
1kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder ±10% NHP22 20.5mm
Related Products
PTV09 series 9mm rotary linear potentiometers with a ...
Description:
PTV09 series 9mm rotary linear potentiometers with a carbon element, insulated shaft and centre detent option (stock numbers 737-7821, 827-4990, 827-5022 and 737-7830). These PTV09 rotary linear potentiometers are PCB horizontal mounting apart from stock number 737-7818 which is vertical/side ...
This cermet track series fulfils the requirements of ...
Description:
This cermet track series fulfils the requirements of the NFC 83253 standard.IP67 sealed enclosure.The interchangeability of the RV6 with the P13, along with the excellent stability of nominal characteristics in operation, qualifies the P13 series for use in professional and ...
Cermet track potentiometers, P11VYN model with bushing and ...
Description:
Cermet track potentiometers, P11VYN model with bushing and 6 mm metal axis.Panel mounting, solder terminal outputs.Available in single linear, double linear or logarithmic versions.Supplied with nut and washer.Sealed in accordance with IP 64.
Cermet track potentiometer with metal body and shaftPanel ...
Description:
Cermet track potentiometer with metal body and shaftPanel mounting, solder pin connectionSingle or double linear & logarithmic modelsInsulation resistance >1000GΩ at 500VdcEnvironmental class 55/125/56Enclosures class IP64Linear tracks rated 1W, log tracks 0.5W.