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

...
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제품설명 단가 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 제품 번호 167-8896
제조사 부품 번호PE30L0FL103KAB
제조사Vishay
₩43,525.55
Each (In a Box of 10)
수량
10 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 25mm
RS 제품 번호 790-4445
제조사 부품 번호PE30L0FL103KAB
제조사Vishay
₩46,503.10
Each
수량
10 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 25mm
RS 제품 번호 460-7526
제조사 부품 번호534B1103JL
제조사Vishay
₩40,168.25
Each
수량
10 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS 제품 번호 167-9487
제조사 부품 번호534B1103JL
제조사Vishay
₩38,154.80
Each (In a Box of 10)
수량
10 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS 제품 번호 167-8689
제조사 부품 번호PE30L0FR474KAB
제조사Vishay
₩27,940.30
Each (In a Box of 10)
수량
470 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 50mm
RS 제품 번호 790-4312
제조사 부품 번호PE30L0FR474KAB
제조사Vishay
₩42,628.10
Each
수량
470 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 50mm
RS 제품 번호 460-7510
제조사 부품 번호534B1102JL
제조사Vishay
₩27,847.30
Each
수량
1 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS 제품 번호 790-4476
제조사 부품 번호PE30L0FL221KAB
제조사Vishay
₩34,082.95
Each
수량
220 Ω Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 25mm
RS 제품 번호 167-8704
제조사 부품 번호PE30L0FL221KAB
제조사Vishay
₩26,340.70
Each (In a Box of 10)
수량
220 Ω Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 25mm
RS 제품 번호 167-9486
제조사 부품 번호534B1102JL
제조사Vishay
₩24,725.60
Each (In a Box of 10)
수량
1 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS 제품 번호 172-6361
제조사 부품 번호RK1631110TWA
제조사Alps Alpine
₩1,827.45
Each (In a Box of 2400)
수량
10 kΩ Rotary 1 - Panel Mount, Through Hole 0.1W 6 mm Linear - - Pin ±10% RK163 -
RS 제품 번호 249-9238
제조사 부품 번호RK1631110TWA
제조사Alps Alpine
₩3,724.65
Each
수량
10 kΩ Rotary 1 - Panel Mount, Through Hole 0.1W 6 mm Linear - - Pin ±10% RK163 -
RS 제품 번호 164-5242
제조사 부품 번호27ESA103MMF50NF
제조사TE Connectivity
₩5,849.70
Each (In a Box of 100)
수량
10 kΩ Rotary 1 2 Panel Mount 0.4W 4 mm Linear - Carbon Solder ±20% 27 50mm
RS 제품 번호 807-7171
제조사 부품 번호27ESA103MMF50NF
제조사TE Connectivity
₩7,308.25
Each
수량
10 kΩ Rotary 1 2 Panel Mount 0.4W 4 mm Linear - Carbon Solder ±20% 27 50mm
RS 제품 번호 107-0757
제조사 부품 번호3590S-2-102L
제조사Bourns
₩18,817.00
Each
수량
1 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS 제품 번호 167-3582
제조사 부품 번호3590S-2-102L
제조사Bourns
₩15,399.25
Each (In a Tray of 25)
수량
1 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS 제품 번호 162-776
제조사 부품 번호404802692032
제조사TE Connectivity
₩31,520.80
Each
수량
100 Ω Rotary 1 1 Panel Mount 2W 6.35 mm Linear - Cermet Pin ±10% M 25.4mm
RS 제품 번호 486-7116
제조사 부품 번호534B1202JC8872
제조사Vishay
₩40,699.90
Each
수량
2 kΩ Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS 제품 번호 486-7150
제조사 부품 번호534B1502JC8872
제조사Vishay
₩24,387.70
Each
수량
5 kΩ Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS 제품 번호 167-9574
제조사 부품 번호534B1502JC8872
제조사Vishay
₩26,825.85
Each (In a Box of 10)
수량
5 kΩ Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm