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 1 - 20 รายการจาก 51 รายการ / Viewing 1 - 20 of 51 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. 831-8769
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C3100K
Brand :Honeywell
THB515.89
Each
Units
100 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm
RS Stock No. 831-6678
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C11K
Brand :Honeywell
THB517.82
Each
Units
1 kΩ Rotary - 1 Panel Mount 2W 50.8 mm Linear - Conductive Plastic Solder Lug ±10% 53C 50.08mm
RS Stock No. 831-8790
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C3250K
Brand :Honeywell
THB514.73
Each
Units
250 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm
RS Stock No. 831-8807
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C350
Brand :Honeywell
THB483.43
Each
Units
50 Ω Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm
RS Stock No. 831-8813
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C350K
Brand :Honeywell
THB620.15
Each
Units
50 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm
RS Stock No. 831-0686
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.73JA1K
Brand :Honeywell
THB2,395.70
Each
Units
1 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 73 20.6mm
RS Stock No. 831-8762
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C310K
Brand :Honeywell
THB510.55
Each
Units
10 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm
RS Stock No. 831-6785
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.JA1N056S202UA
Brand :Honeywell
THB1,953.88
Each
Units
2 kΩ Rotary 1 1 Panel Mount 2W 6.35 mm Linear - Carbon Solder ±10% J 22.2mm
RS Stock No. 831-0487
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.380C310K
Brand :Honeywell
THB761.56
Each
Units
10 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 380 22.2mm
RS Stock No. 831-8826
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C35MEG
Brand :Honeywell
THB632.41
Each
Units
5 MΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±20% 53C 22.2mm
RS Stock No. 853-6800
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C25K
Brand :Honeywell
THB610.76
Each
Units
5 kΩ Rotary 1 1 Surface Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 15.9mm
RS Stock No. 831-0507
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.380C35000
Brand :Honeywell
THB800.01
Each
Units
5 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 380 22.2mm
RS Stock No. 831-8804
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C32K
Brand :Honeywell
THB525.87
Each
Units
2 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm
RS Stock No. 854-1669
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C33500
Brand :Honeywell
THB516.59
Each
Units
3.5 kΩ Rotary 1 1 Surface Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm
RS Stock No. 831-6704
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.73JA5K
Brand :Honeywell
THB1,793.36
Each
Units
5 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 73 20.6mm
RS Stock No. 831-0695
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.73JA2K
Brand :Honeywell
THB2,522.90
Each
Units
2 kΩ Rotary 10 1 Panel Mount 2W 6.35 mm Linear - Wirewound Solder Lug ±5% 73 -
RS Stock No. 831-6690
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C125K
Brand :Honeywell
THB527.93
Each
Units
25 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 19.1mm
RS Stock No. 831-6687
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C12500
Brand :Honeywell
THB580.00
Each
Units
2.5 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 19.1mm
RS Stock No. 831-8810
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C3500K
Brand :Honeywell
THB517.82
Each
Units
500 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm
RS Stock No. 831-8778
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.53C315K
Brand :Honeywell
THB497.90
Each
Units
15 kΩ Rotary - 1 Panel Mount 2W 6.35 mm Linear - Conductive Plastic Solder Lug ±10% 53C 22.2mm