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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กำลังดูสินค้า 41 - 60 รายการจาก 2090 รายการ / Viewing 41 - 60 of 2090 products
ผลการค้นหาต่อหน้า / Results Per Page
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. 602-3699
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.JC10-000-502N
THB635.01
Each
Units
5 kΩ Rotary 1 - Through Hole 1/8W 3 mm Linear - - Pin ±20% - -
RS Stock No. 167-5358
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-6-103L
Brand :Bourns
THB402.023
Each (In a Tray of 25)
Units
10 kΩ Rotary - 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 172-8079
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RK09L1220A1B
Brand :Alps Alpine
THB39.22
Each (In a Tray of 100)
Units
100 kΩ Rotary 1 - Panel Mount, Through Hole 0.05W 6 mm Linear - - Pin ±20% RK09L -
RS Stock No. 460-7453
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.357B2202MAB251S22
Brand :Vishay
THB1,028.67
Each
Units
2 kΩ Rotary 1 1 Panel Mount 1W 6.35 mm Linear - Conductive Plastic Turret ±20% 357 22.2mm
RS Stock No. 729-3432
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RK09L1220A1B
Brand :Alps Alpine
THB51.60
Each
Units
100 kΩ Rotary 1 2 Through Hole 0.05W 6 mm Linear - - Pin ±20% RK09L 15mm
RS Stock No. 167-9765
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.357B2202MAB251S22
Brand :Vishay
THB834.08
Each (In a Box of 50)
Units
2 kΩ Rotary 1 1 Panel Mount 1W 6.35 mm Linear - Conductive Plastic Turret ±20% 357 22.2mm
RS Stock No. 167-4718
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.6539S-1-102
Brand :Bourns
THB922.264
Each (In a Tray of 25)
Units
1 kΩ Rotary 1 1 Panel Mount 1W 3.18 mm Linear - Conductive Plastic Solder Turret ±15% 6539 12.7mm
RS Stock No. 167-9570
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.534B1201JC8872
Brand :Vishay
THB794.17
Each (In a Box of 10)
Units
200 Ω Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS Stock No. 692-8591
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.6539S-1-102
Brand :Bourns
THB1,235.11
Each
Units
1 kΩ Rotary 1 1 Panel Mount 1W 3.18 mm Linear - Conductive Plastic Solder Turret ±15% 6539 12.7mm
RS Stock No. 502-8609
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TW1102KA
THB388.48
Each
Units
1 kΩ Rotary 1 1 Panel Mount 1W 6.35 mm Linear - Wirewound Solder Lug ±10% TW 15mm
RS Stock No. 486-7100
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.534B1201JC8872
Brand :Vishay
THB821.74
Each
Units
200 Ω Rotary 10 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 534 20.6mm
RS Stock No. 753-7271
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P13SMNFGS102MA
Brand :Vishay
THB1,712.43
Each
Units
1 kΩ Rotary 1 1 Panel Mount 1.5W 6 mm Linear - Cermet - ±20% P13SM 16mm
RS Stock No. 168-0029
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.P13SMNFGS102MA
Brand :Vishay
THB1,510.523
Each (In a Box of 10)
Units
1 kΩ Rotary 1 1 Panel Mount 1.5W 6 mm Linear - Cermet - ±20% P13SM 16mm
RS Stock No. 167-9484
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.157S102MB9002
Brand :Vishay
THB2,085.52
Each (In a Box of 10)
Units
1 kΩ Rotary 1 1 Servo Mount 1W 3.18 mm Linear - Conductive Plastic Turret ±20% 157 22.2mm
RS Stock No. 789-9387
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3590S-6-103L
Brand :Bourns
THB525.02
Each
Units
10 kΩ Rotary - 1 Panel Mount 2W 6 mm Linear - Wirewound Solder Lug ±5% 3590 20.6mm
RS Stock No. 173-552
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.157S102MB9002
Brand :Vishay
THB2,128.16
Each
Units
1 kΩ Rotary 1 1 Servo Mount 1W 3.18 mm Linear - Conductive Plastic Turret ±20% 157 22.2mm
RS Stock No. 167-4720
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.6539S-1-202
Brand :Bourns
THB922.264
Each (In a Tray of 25)
Units
2 kΩ Rotary 1 1 Panel Mount 1W 3.18 mm Linear - Conductive Plastic Solder Turret ±15% 6539 12.7mm
RS Stock No. 460-2032
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.357B0102MAB251S22
Brand :Vishay
THB959.77
Each
Units
1 kΩ Rotary Continuous 1 Panel Mount 1W 22 mm Linear - Conductive Plastic Turret ±20% 357 22
RS Stock No. 164-2661
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.6639S-1-502
Brand :Bourns
THB550.05
Each
Units
5 kΩ Rotary Continuous 1 Panel Mount 1W 6.35 mm Linear - Conductive Plastic Solder Turret ±15% 6639 22.2mm
RS Stock No. 167-9768
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.357B0202MAB251S22
Brand :Vishay
THB799.70
Each (In a Box of 50)
Units
2 kΩ Rotary Continuous 1 Panel Mount 1W 22 mm Linear - Conductive Plastic Turret ±20% 357 22
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