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

6695 產品顯示為 Variable Resistors

排序方式
4 335
有庫存
  • RS庫存編號 521-9748
  • 製造零件編號 3296W-1-205LF
小計(1 件)
TWD74.00(不含稅)
TWD74.00/件
暫時缺貨
  • RS庫存編號 167-4525
  • 製造零件編號 3548S-1AA-103A
小計(1 托盤,共 5 件)
TWD4,763.00(不含稅)
TWD952.60/件
有庫存
  • RS庫存編號 691-7667
  • 製造零件編號 3386V-1-104LF
小計(1 件)
TWD51.00(不含稅)
TWD51.00/件
暫時缺貨
  • RS庫存編號 770-3068
  • 製造零件編號 PDB181-GTR01-504A2
小計(1 件)
TWD86.00(不含稅)
TWD86.00/件
有庫存
  • RS庫存編號 225-928
  • 製造零件編號 C151-BLK
小計(1 包,共 10 件)
TWD217.00(不含稅)
TWD21.70/件
有庫存
  • RS庫存編號 522-0978
  • 製造零件編號 3362P-1-502LF
小計(1 件)
TWD35.00(不含稅)
TWD35.00/件
有庫存
  • RS庫存編號 743-2482
  • 製造零件編號 H-92-1
小計(1 件)
TWD126.00(不含稅)
TWD126.00/件
有庫存
  • RS庫存編號 842-7131
小計(1 件)
TWD697.00(不含稅)
TWD697.00/件
有庫存
  • RS庫存編號 769-2173
  • 製造零件編號 PV36W201C01B00
小計(1 件)
TWD61.00(不含稅)
TWD61.00/件
有庫存
  • RS庫存編號 162-215
  • 製造零件編號 M43P202KB40
小計(1 件)
TWD74.00(不含稅)
TWD74.00/件
暫時缺貨
  • RS庫存編號 172-7722
  • 製造零件編號 RK27112A00A5
小計(1 盒,共 500 件)
TWD335,850.00(不含稅)
TWD671.70/件
有庫存
  • RS庫存編號 107-0791
  • 製造零件編號 3590S-2-203L
小計(1 件)
TWD566.00(不含稅)
TWD566.00/件
製造商存貨
  • RS庫存編號 792-599
  • 製造零件編號 K-2605
小計(1 件)
TWD48.00(不含稅)
TWD48.00/件
有庫存
RS Better World
  • RS庫存編號 125-4399
  • 製造零件編號 XB4BD912R100K
小計(1 件)
TWD2,798.00(不含稅)
TWD2,798.00/件
有庫存
  • RS庫存編號 790-4491
  • 製造零件編號 PE30L0FL473KAB
小計(1 件)
TWD1,250.00(不含稅)
TWD1,250.00/件
有庫存
  • RS庫存編號 263-3006
  • 製造零件編號 RK09K1110A96
小計(1 件)
TWD74.00(不含稅)
TWD74.00/件
有庫存
  • RS庫存編號 248-6816
  • 製造零件編號 H-385-2
小計(1 件)
TWD1,883.00(不含稅)
TWD1,883.00/件
有庫存
  • RS庫存編號 486-7526P
  • 製造零件編號 TS53YL103MR10
小計 5 件 (按連續帶提供)
TWD389.00(不含稅)
TWD77.80/件
有庫存
  • RS庫存編號 522-2687
  • 製造零件編號 3386P-1-102LF
小計(1 件)
TWD48.00(不含稅)
TWD48.00/件
有庫存
  • RS庫存編號 691-7670
  • 製造零件編號 3386V-1-501LF
小計(1 件)
TWD51.00(不含稅)
TWD51.00/件
每頁顯示的結果