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

...
Voir plus Voir moins

Filtres

Afficher 41 - 60 des 2151 produits
Nombre de résultats par page
Description Prix 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
N° de stock RS 172-7656
Référence fabricantRK1631110TV6
MarqueAlps Alpine
1,163 €
Each (In a Box of 1000)
Unité
50 kΩ Rotary 1 - Panel Mount, Through Hole 0.1W 6 mm Linear - - Pin ±20% RK163 -
N° de stock RS 167-9508
Référence fabricant157B102MX9001
MarqueVishay
22,263 €
Each (In a Box of 10)
Unité
1 kΩ Rotary 1 1 Panel Mount 1W 6.35 mm Linear - Conductive Plastic Turret ±20% 157 22.2mm
N° de stock RS 851-7391
Référence fabricant91A1A-B24-D15L
MarqueBourns
5,92 €
Each
Unité
10 kΩ Rotary 1 1 Panel Mount 0.5W 6.35 mm CW Audio - Conductive Plastic PC Pin ±20% 91 19mm
N° de stock RS 172-7660
Référence fabricantRK09712200JC
MarqueAlps Alpine
1,452 €
Each (In a Tray of 80)
Unité
50 kΩ Rotary 1 - Panel Mount, Through Hole 0.05W 6 mm Logarithmic - - Pin ±20% RK097 -
N° de stock RS 486-7087
Référence fabricant534B1102JC8872
MarqueVishay
15,27 €
Each
Unité
1 kΩ Linear 10 - Panel Mount 2W 6 mm - - - Solder Lug ±5% 534 -
N° de stock RS 164-2677
Référence fabricant6639S-1-103
MarqueBourns
15,72 €
Each
Unité
10 kΩ Rotary Continuous 1 Panel Mount 1W 6.35 mm Linear - Conductive Plastic Solder Turret ±15% 6639 22.2mm
N° de stock RS 173-732
Référence fabricant157B102MX9001
MarqueVishay
26,89 €
Each
Unité
1 kΩ Rotary 1 1 Panel Mount 1W 6.35 mm Linear - Conductive Plastic Turret ±20% 157 22.2mm
N° de stock RS 486-7150
Référence fabricant534B1502JC8872
MarqueVishay
19,02 €
Each
Unité
5 kΩ Linear 10 - Panel Mount 2W 6 mm - - - Solder Lug ±5% 534 -
N° de stock RS 167-3594
Référence fabricant6639S-1-103
MarqueBourns
12,725 €
Each (In a Tray of 25)
Unité
10 kΩ Rotary Continuous 1 Panel Mount 1W 6.35 mm Linear - Conductive Plastic Solder Turret ±15% 6639 22.2mm
N° de stock RS 168-178
Référence fabricant1623763-2
4,40 €
Each
Unité
100 kΩ Rotary 1 1 Panel Mount 0.4W 6.35 mm Linear - Carbon Solder Lug ±20% 23 50mm
N° de stock RS 167-9574
Référence fabricant534B1502JC8872
MarqueVishay
14,267 €
Each (In a Box of 10)
Unité
5 kΩ Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
N° de stock RS 135-4433
Référence fabricant1623763-2
2,399 €
Each (In a Box of 200)
Unité
100 kΩ Rotary 1 1 Panel Mount 0.4W 6.35 mm Linear - Carbon Solder Lug ±20% 23 50mm
N° de stock RS 249-9250
Référence fabricantRK1631110TV6
MarqueAlps Alpine
1,78 €
Each
Unité
50 kΩ Rotary 1 - Panel Mount, Through Hole 0.1W 6 mm Linear - - Pin ±20% RK163 -
N° de stock RS 167-9568
Référence fabricant534B1102JC8872
MarqueVishay
13,675 €
Each (In a Box of 10)
Unité
1 kΩ Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
N° de stock RS 172-6359
Référence fabricantRK0971110D57
MarqueAlps Alpine
1,617 €
Each (In a Tray of 80)
Unité
10 kΩ Rotary 1 - Panel Mount, Through Hole 0.05W 6 mm Linear - - Pin ±20% RK097 -
N° de stock RS 167-8865
Référence fabricantP11S1V0FLSY00104KA
MarqueVishay
6,855 €
Each (In a Box of 60)
Unité
100 kΩ Rotary 1 1 Panel Mount 1W 6 mm Linear - Cermet Solder Lug ±10% P11S 25mm
N° de stock RS 729-3482
Référence fabricantRK0971110D57
MarqueAlps Alpine
1,90 €
Each
Unité
10 kΩ Rotary 1 1 Through Hole 0.05W 6 mm - - - Pin ±20% RK097 25mm
N° de stock RS 789-9456
Référence fabricant93A1A-B28-A15L
MarqueBourns
5,24 €
Each
Unité
10 kΩ Rotary 1 1 Panel Mount 2W 6.35 mm Linear - Cermet PC Pin ±10% 93 22.2mm
N° de stock RS 168-0030
Référence fabricantP13SMNFGS472MA
MarqueVishay
43,278 €
Each (In a Box of 10)
Unité
4.7 kΩ Rotary 1 1 Panel Mount 1.5W 6 mm Linear - Cermet - ±20% P13SM 16mm
N° de stock RS 831-6791
Référence fabricantJA1N056S252UA
MarqueHoneywell
76,56 €
Each
Unité
2.5 kΩ Rotary 1 1 Panel Mount 2W 6.35 mm Linear - Carbon Solder ±10% J 22.2mm