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.

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 KnobsPotentiometer Accessories Potentiometer Mounting Nuts

...
Lees meer Lees minder

Filters

81 - 100 van 1910 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs 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-stocknr. 136-1613
Fabrikantnummer1624151-2
FabrikantTE Connectivity
€ 2,66
Each (In a Box of 200)
Aantal stuks
10 kΩ Rotary 1 1 Panel Mount 0.2W 6.35 mm Logarithmic - Carbon Solder Lug ±20% 23 50mm
RS-stocknr. 167-8707
FabrikantnummerPE30L0FL472KAB
FabrikantVishay
€ 27,371
Each (In a Box of 10)
Aantal stuks
4.7 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 25mm
RS-stocknr. 135-4477
Fabrikantnummer1624139-2
FabrikantTE Connectivity
€ 3,281
Each (In a Box of 200)
Aantal stuks
4.7 kΩ Rotary 1 1 Panel Mount 0.4W 6.35 mm Linear - Carbon Solder Lug ±20% 23 50mm
RS-stocknr. 135-4478
Fabrikantnummer1623757-2
FabrikantTE Connectivity
€ 3,676
Each (In a Box of 200)
Aantal stuks
1 kΩ Rotary 1 1 Panel Mount 0.4W 6.35 mm Linear - Carbon Solder Lug ±20% 23 50mm
RS-stocknr. 387-745
Fabrikantnummer1623757-2
FabrikantTE Connectivity
€ 5,64
Each
Aantal stuks
1 kΩ Rotary 1 1 Panel Mount 0.4W 6.35 mm Linear - Carbon Solder Lug ±20% 23 50mm
RS-stocknr. 263-3270
FabrikantnummerRSA0N11S9002
FabrikantAlps Alpine
€ 5,93
Each
Aantal stuks
10 kΩ Slide 1 - Through Hole 0.5W - Linear - - Pin ±20% RSA0N 8.2mm
RS-stocknr. 135-4480
Fabrikantnummer1624202-2
FabrikantTE Connectivity
€ 5,156
Each (In a Box of 100)
Aantal stuks
10 kΩ Rotary 1 1 Panel Mount 0.4W 6.35 mm Linear - Carbon Solder Lug ±20% 23 50mm
RS-stocknr. 172-6351
FabrikantnummerRK0971110702
FabrikantAlps Alpine
€ 1,119
Each (In a Tray of 80)
Aantal stuks
50 kΩ Rotary 1 - Panel Mount, Through Hole 0.05W 6 mm Logarithmic - - Pin ±20% RK097 -
RS-stocknr. 167-9473
Fabrikantnummer157S103MX
FabrikantVishay
€ 35,405
Each (In a Box of 10)
Aantal stuks
10 kΩ Rotary 1 1 Servo Mount 1W 3.18 mm Linear - Conductive Plastic Turret ±20% 157 11.1mm
RS-stocknr. 387-846
Fabrikantnummer1624202-2
FabrikantTE Connectivity
€ 7,52
Each
Aantal stuks
10 kΩ Rotary 1 1 Panel Mount 0.4W 6.35 mm Linear - Carbon Solder Lug ±20% 23 50mm
RS-stocknr. 166-9921
FabrikantnummerPTD901-2015K-B103
FabrikantBourns
€ 1,052
Each (In a Bag of 162)
Aantal stuks
10 kΩ Rotary - 1 - 0.05W 6 mm Linear - Carbon PC Pin ±25% PTD90 15mm
RS-stocknr. 522-0625
Fabrikantnummer3310Y-001-103L
FabrikantBourns
€ 2,52
Each
Aantal stuks
10 kΩ Rotary 1 1 Panel Mount, Through Hole 0.25W 3.18 mm Linear - Conductive Plastic PC Pin ±20% 3310 12.7mm
RS-stocknr. 294-3690
Fabrikantnummer157S103MX
FabrikantVishay
€ 46,33
Each
Aantal stuks
10 kΩ Rotary 1 1 Servo Mount 1W 3.18 mm Linear - Conductive Plastic Turret ±20% 157 11.1mm
RS-stocknr. 172-6396
FabrikantnummerRSA0N11S9002
FabrikantAlps Alpine
€ 10,431
Each (In a Tray of 40)
Aantal stuks
10 kΩ Slide 1 - Through Hole 0.5W - Linear - - Pin ±20% RSA0N 8.2mm
RS-stocknr. 790-4293
FabrikantnummerPE30L0FR103KAB
FabrikantVishay
€ 32,77
Each
Aantal stuks
10 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 50mm
RS-stocknr. 172-6336
FabrikantnummerRK09L112003P
FabrikantAlps Alpine
€ 1,303
Each (In a Tray of 100)
Aantal stuks
20 kΩ Rotary 1 - Panel Mount, Through Hole 0.05W 6 mm Linear - - Pin ±20% RK09L 15mm
RS-stocknr. 387-739
Fabrikantnummer1624139-2
FabrikantTE Connectivity
€ 4,88
Each
Aantal stuks
4.7 kΩ Rotary 1 1 Panel Mount 0.4W 6.35 mm Linear - Carbon Solder Lug ±20% 23 50mm
RS-stocknr. 167-8683
FabrikantnummerPE30L0FR103KAB
FabrikantVishay
€ 29,474
Each (In a Box of 10)
Aantal stuks
10 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 50mm
RS-stocknr. 729-3404
FabrikantnummerRK09L112003P
FabrikantAlps Alpine
€ 1,63
Each
Aantal stuks
20 kΩ Rotary 1 1 Through Hole 0.05W 6 mm Linear - - Pin ±20% RK09L 15mm
RS-stocknr. 249-9109
FabrikantnummerRK0971110702
FabrikantAlps Alpine
€ 2,21
Each
Aantal stuks
50 kΩ Rotary 1 - Panel Mount, Through Hole 0.05W 6 mm Logarithmic - - Pin ±20% RK097 -