Variable Resistors

Browse our wide range of variable resistors including potentiometers, rheostats and thermistors from market leading electronics brands including Vishay, Bourns, EPCOS and RS Pro.

What are variable resistors and how do they work?

Variable resistors are electrical components that give you control over the current flow through an electric circuit. Variable resistors can be used in a variety of different types of devices, including the volume and gain control on electric instruments such as guitars and basses. The Variable resistors have a maximum and minimum value which can alter the current. Variable resistors are extremely important, without them you cannot control your circuit.

What does a variable resistor do in a circuit?

A variable resistor's role in a circuit is to allow the amount of resistance to be changed. When resistance decreases the flow of the current increases. There are different types of variable resistors that can be used for different functions and environments.

Types of resistors

The three most common types of variable resistors are:

  • Potentiometers The most common type of variable resistor is the potentiometers. The potentiometer can be used as a voltage regulator by introducing a variable amount of resistance into a circuit or as a means of adjusting the power in a circuit. Potentiometers can also be known as "pot" or, more specifically, slider pot, trimmer pot or thumbwheel pot.
  • Rheostat A rheostat is a variable resistor which is used to control current within an electrical circuit. They can control the resistance without interrupting it. Unlike the Potentiometer the Rheostat only uses 2 leads. A connection is made to one end of the resistive element and the other connection is made to the wiper end of the variable resistor. Rheostats are commonly used in motor control.
  • Trimmer Resistors Unlike other resistors, a trimmer resistor is a smaller component that is used to be placed within your circuit and not adjusted again. They are also known as trimpots.

Other types of variable resistors

include:

  • Ceramic Transient Voltage Suppressors
  • Metal Oxide Varistors
  • Potentiometer Accessories
  • Potentiometer Knob
  • Potentiometer Mounting Nuts
  • Rheostat Dials
  • Thermistors
  • Trimmer Resistor Adjustment Tools
  • Trimmer Resistor Mount Adapters
Potentiometer Accessories
Potentiometer Accessories
Potentiometer Knobs
Potentiometer Knobs
Potentiometers
Potentiometers
Rheostat Accessories
Rheostat Accessories
Rheostats
Rheostats
Trimmer Potentiometer Accessories
Trimmer Potentiometer Accessories
Trimmer Potentiometers
Trimmer Potentiometers

6610 產品顯示為 Variable Resistors

1 的 331
有庫存
50 kΩ, Through Hole Trimmer Potentiometer, Solder Pin 0.5 W Top Adjust Bourns, PV36
  • RS庫存編號 769-2195
  • 製造零件編號 PV36W503C01B00
小計（1 件）
HK$14.30
HK$14.30/件
有庫存
Nidec Components CRV16 5 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel
  • RS庫存編號 202-4416
  • 製造零件編號 CRV16-00-502
小計（1 件）
HK$95.20
HK$95.20/件
有庫存
2 mΩ, Surface Trimmer Potentiometer, J-Hook 0.125 W Top Adjust Nidec Components, ST-32
  • RS庫存編號 244-4369
  • 製造零件編號 ST-32ETA501
小計（1 組，共 5 件）
HK$73.30
HK$14.66/件
有庫存
10 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3386
  • RS庫存編號 522-2233
  • 製造零件編號 3386F-1-103TLF
小計（1 件）
HK$17.20
HK$17.20/件
有庫存
Vishay 149 10 kΩ Rotary Potentiometer 1-Turns 2-Gang Panel Mount, Through Hole, 14920F0GJSX13103KA
  • RS庫存編號 484-9269
  • 製造零件編號 14920F0GJSX13103KA
小計（1 件）
HK$172.30
HK$172.30/件
有庫存
Bourns 46 mm Knob Diameter Black, Chrome Potentiometer Knob for 6.35 mm Shaft Circular, H-46-6A-1
  • RS庫存編號 737-7714
  • 製造零件編號 H-46-6A-1
小計（1 件）
HK$286.30
HK$286.30/件
有庫存
TE Connectivity 23 1 mΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, 1623767-2
  • RS庫存編號 168-207
  • 製造零件編號 1623767-2
小計（1 件）
HK$36.20
HK$36.20/件
暫時缺貨
2.2 kΩ, Through Hole Trimmer Potentiometer, Solder Pin 0.5 W Top Adjust Bourns, 3386
  • RS庫存編號 785-9512
  • 製造零件編號 3386P-1-222LF
小計（1 件）
HK$10.40
HK$10.40/件
有庫存
RS PRO 16.2 mm Knob Diameter Black, Grey Potentiometer Knob for 6 mm Shaft Circular
  • RS庫存編號 259-6929
小計（1 包，共 5 件）
HK$81.60
HK$16.32/件
有庫存
Bourns PTV09 5 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, Through Hole
  • RS庫存編號 737-7830P
  • 製造零件編號 PTV09A-4225F-B502
小計 1 件 (以盤裝提供)
HK$6.80
HK$6.80/件
有庫存
500 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Bourns, 3362
  • RS庫存編號 522-1000
  • 製造零件編號 3362P-1-504LF
小計（1 件）
HK$7.30
HK$7.30/件
有庫存
Sifam 11.5 mm Knob Diameter Black Potentiometer Knob for 6 mm Shaft D Shaped, 3/03/DR110-006/237/224
  • RS庫存編號 299-4812
  • 製造零件編號 3/03/DR110-006/237/224
小計（1 包，共 5 件）
HK$26.90
HK$5.38/件
有庫存
Vishay P11P 5 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, P11P1F0GJSY00502KA
  • RS庫存編號 743-5737
  • 製造零件編號 P11P1F0GJSY00502KA
小計（1 件）
HK$147.80
HK$147.80/件
有庫存
10 kΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Nidec Components, RJ-4
  • RS庫存編號 474-6700
  • 製造零件編號 RJ-4EW 10k Ohm
小計（1 件）
HK$30.10
HK$30.10/件
有庫存
10 kΩ, Through Hole Trimmer Potentiometer, Pin 0.75 W Side Adjust Nidec Components, RJ-13
  • RS庫存編號 474-9169
  • 製造零件編號 RJ-13S 10k Ohm (103)
小計（1 件）
HK$35.20
HK$35.20/件
有庫存
2 kΩ, Surface Trimmer Potentiometer, J-Hook 0.1 W Top Adjust Bourns, 3312
  • RS庫存編號 691-6951
  • 製造零件編號 3312J-1-202E
小計（1 件）
HK$20.50
HK$20.50/件
有庫存
TE Connectivity TW 5 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount, TW1502KA
  • RS庫存編號 502-8621
  • 製造零件編號 TW1502KA
小計（1 件）
HK$106.30
HK$106.30/件
有庫存
Bourns 22.8 mm Knob Diameter Black, Chrome Potentiometer Knob for 6 mm Shaft Circular, H-516-6M
  • RS庫存編號 770-3236
  • 製造零件編號 H-516-6M
小計（1 件）
HK$64.60
HK$64.60/件
有庫存
TE Connectivity 25.9 mm Knob Diameter Black Potentiometer Knob for 6.35 mm Shaft Circular, PKD70B101/4
  • RS庫存編號 783-0205
  • 製造零件編號 PKD70B101/4
小計（1 件）
HK$30.20
HK$30.20/件
有庫存
1 mΩ, Through Hole Trimmer Potentiometer, Pin 0.5 W Top Adjust Vishay, 63M
  • RS庫存編號 183-1259P
  • 製造零件編號 M63M105KB30T607
小計 1 件 (以盒裝提供)
HK$35.70
HK$35.70/件
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