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

6812 產品顯示為 Variable Resistors

排序方式
116 的 341
有庫存
  • RS庫存編號 144-2107
  • 製造零件編號 64WR1KLF
小計(1 管,共 50 件)
TWD2,760.00(不含稅)
TWD55.20/件
暫時缺貨
  • RS庫存編號 162-2563
  • 製造零件編號 3314G-1-503E
小計(1 卷,共 500 件)
TWD15,050.00(不含稅)
TWD30.10/件
有庫存
  • RS庫存編號 154-1984
  • 製造零件編號 M64W500KB40
小計(1 件)
TWD105.00(不含稅)
TWD105.00/件
暫時無法供應
  • RS庫存編號 607-349
  • 製造零件編號 M64Z103KB40
小計(1 盒,共 200 件)
TWD10,240.00(不含稅)
TWD51.20/件
有庫存
  • RS庫存編號 607-354
  • 製造零件編號 M64Z203KB40
小計(1 包,共 5 件)
TWD305.00(不含稅)
TWD61.00/件
有庫存
  • RS庫存編號 607-350
  • 製造零件編號 M64Z103KB40
小計(1 包,共 5 件)
TWD305.00(不含稅)
TWD61.00/件
暫時無法供應
  • RS庫存編號 144-2067
  • 製造零件編號 67YR10KLF
小計(1 盒,共 50 件)
TWD1,960.00(不含稅)
TWD39.20/件
有庫存
  • RS庫存編號 607-352
  • 製造零件編號 M64Z104KB40
小計(1 包,共 5 件)
TWD305.00(不含稅)
TWD61.00/件
有庫存
  • RS庫存編號 640-774
  • 製造零件編號 PT10MH01103A2020IPMS
小計(1 件)
TWD11.00(不含稅)
TWD11.00/件
有庫存
  • RS庫存編號 640-716
  • 製造零件編號 PT15NV17102A2020IPMS
小計(1 件)
TWD19.00(不含稅)
TWD19.00/件
有庫存
  • RS庫存編號 154-2460
  • 製造零件編號 M64Y104KB40
小計(1 件)
TWD96.00(不含稅)
TWD96.00/件
暫時無法供應
  • RS庫存編號 144-2189
  • 製造零件編號 64WR500LF
小計(1 包,共 5 件)
TWD426.00(不含稅)
TWD85.20/件
有庫存
  • RS庫存編號 144-2242
  • 製造零件編號 67XR5KLF
小計(1 包,共 5 件)
TWD280.00(不含稅)
TWD56.00/件
有庫存
  • RS庫存編號 640-807
  • 製造零件編號 PT15NH05473A2020IPMS
小計(1 件)
TWD19.00(不含稅)
TWD19.00/件
暫時無法供應
  • RS庫存編號 144-2199
  • 製造零件編號 64WR2KLF
小計(1 包,共 5 件)
TWD428.00(不含稅)
TWD85.60/件
有庫存
  • RS庫存編號 144-2228
  • 製造零件編號 89PR10KLFTB
小計(1 包,共 5 件)
TWD299.00(不含稅)
TWD59.80/件
暫時缺貨
  • RS庫存編號 144-2105
  • 製造零件編號 64WR20KLF
小計(1 管,共 50 件)
TWD2,635.00(不含稅)
TWD52.70/件
有庫存
  • RS庫存編號 653-027
  • 製造零件編號 TSM41YJ105KR05
小計(1 組,共 1 件)
TWD153.00(不含稅)
TWD153.00/組
有庫存
  • RS庫存編號 161-7056
  • 製造零件編號 3006P-1-251LF
小計(1 管,共 25 件)
TWD1,122.50(不含稅)
TWD44.90/件
暫時無法供應
  • RS庫存編號 162-2464
  • 製造零件編號 T18501KT10
小計(1 管,共 25 件)
TWD1,602.50(不含稅)
TWD64.10/件
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