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

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กำลังดูสินค้า 1 - 20 รายการจาก 1959 รายการ / Viewing 1 - 20 of 1959 products
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รายละเอียดสินค้า / Description ราคา / 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. 167-8896
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PE30L0FL103KAB
Brand :Vishay
THB843.644
Each (In a Box of 10)
Units
10 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 25mm
RS Stock No. 790-4445
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PE30L0FL103KAB
Brand :Vishay
THB1,028.97
Each
Units
10 kΩ Rotary 1 1 Panel Mount 3W 6 mm Linear - Cermet Solder Lug ±10% PE30 25mm
RS Stock No. 167-9568
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.534B1102JC8872
Brand :Vishay
THB563.31
Each (In a Box of 10)
Units
1 kΩ Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS Stock No. 486-7087
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.534B1102JC8872
Brand :Vishay
THB706.34
Each
Units
1 kΩ Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS Stock No. 167-9739
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.14920F0GJSX13103KA
Brand :Vishay
THB515.823
Each (In a Box of 60)
Units
10 kΩ Rotary 1 2 Panel Mount, Through Hole 1W 6.35 mm Linear - Cermet Pin ±10% 149 22.2mm
RS Stock No. 484-9269
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.14920F0GJSX13103KA
Brand :Vishay
THB773.69
Each
Units
10 kΩ Rotary 1 2 Panel Mount, Through Hole 1W 6.35 mm Linear - Cermet Pin ±10% 149 22.2mm
RS Stock No. 162-811
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.404802692036
THB776.84
Each
Units
2.2 kΩ Rotary 1 1 Panel Mount 2W 6.35 mm Linear - Cermet Pin ±10% M 25.4mm
RS Stock No. 460-7526
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.534B1103JL
Brand :Vishay
THB1,097.48
Each
Units
10 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS Stock No. 167-3587
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-2-203L
Brand :Bourns
THB350.492
Each (In a Tray of 25)
Units
20 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 107-0791
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-2-203L
Brand :Bourns
THB374.27
Each
Units
20 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 167-9487
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.534B1103JL
Brand :Vishay
THB796.268
Each (In a Box of 10)
Units
10 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS Stock No. 850-9794
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.534-1-1-103
Brand :Vishay
THB699.69
Each
Units
10 kΩ Rotary 10 1 Bushing Mount 2W 6.35 mm Linear - Wirewound Turret ±5% 534 20.6mm
RS Stock No. 107-0785
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-2-103L
Brand :Bourns
THB509.68
Each
Units
10 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 167-3582
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-2-102L
Brand :Bourns
THB350.763
Each (In a Tray of 25)
Units
1 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 107-0757
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-2-102L
Brand :Bourns
THB408.10
Each
Units
1 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 167-9634
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.14910F0GJSX10103KA
Brand :Vishay
THB358.728
Each (In a Box of 50)
Units
10 kΩ Rotary 1 1 Panel Mount, Through Hole 1W 6.35 mm Linear - Cermet Pin ±10% 149 22.2mm
RS Stock No. 167-3584
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-2-502L
Brand :Bourns
THB362.996
Each (In a Tray of 25)
Units
5 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 484-8575
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.14910F0GJSX10103KA
Brand :Vishay
THB516.16
Each
Units
10 kΩ Rotary 1 1 Panel Mount, Through Hole 1W 6.35 mm Linear - Cermet Pin ±10% 149 22.2mm
RS Stock No. 107-0779
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-2-502L
Brand :Bourns
THB517.82
Each
Units
5 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 729-3521
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RK0971221Z05
Brand :Alps Alpine
THB162.28
Each
Units
10 kΩ Rotary 1 2 Through Hole 0.05W 6 mm - - - Pin ±20% RK097 15mm