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
164 的 341
有庫存
  • RS庫存編號 484-8604P
  • 製造零件編號 14910F0GJSX10104KA
小計 1 件 (以袋裝提供)
TWD590.00(不含稅)
TWD590.00/件
有庫存
  • RS庫存編號 225-984
  • 製造零件編號 C211-BLK
小計(1 包,共 10 件)
TWD229.00(不含稅)
TWD22.90/件
有庫存
  • RS庫存編號 522-0956P
  • 製造零件編號 3362P-1-204LF
小計 1 件 (以管提供)
TWD37.00(不含稅)
TWD37.00/件
有限的庫存
  • RS庫存編號 737-7802P
  • 製造零件編號 PTB0144-2010BPA103
小計 1 件 (以盤裝提供)
TWD206.00(不含稅)
TWD206.00/件
有庫存
  • RS庫存編號 785-9590
  • 製造零件編號 3386X-1-224LF
小計(1 件)
TWD50.00(不含稅)
TWD50.00/件
有庫存
  • RS庫存編號 410-211
  • 製造零件編號 249FGJS0XB25253KA
小計(1 件)
TWD582.00(不含稅)
TWD582.00/件
有庫存
  • RS庫存編號 463-8485
小計(1 件)
TWD172.00(不含稅)
TWD172.00/件
有庫存
  • RS庫存編號 167-5270
  • 製造零件編號 H-23-6M
小計(1 托盤,共 10 件)
TWD5,005.00(不含稅)
TWD500.50/件
有庫存
  • RS庫存編號 374-6787P
  • 製造零件編號 T7YA103MT20
小計 5 件 (以管提供)
TWD659.00(不含稅)
TWD131.80/件
有庫存
  • RS庫存編號 807-7171P
  • 製造零件編號 27ESA103MMF50NF
小計 1 件 (以盒裝提供)
TWD249.00(不含稅)
TWD249.00/件
有庫存
  • RS庫存編號 522-0940
  • 製造零件編號 3362P-1-203LF
小計(1 件)
TWD27.00(不含稅)
TWD27.00/件
暫時缺貨
  • RS庫存編號 895-764
  • 製造零件編號 TS4RL202MR10
小計(1 組,共 1 件)
TWD127.00(不含稅)
TWD127.00/組
有庫存
  • RS庫存編號 684-2689P
  • 製造零件編號 PE60L0FLW471MA
小計 1 件 (以袋裝提供)
TWD3,434.00(不含稅)
TWD3,434.00/件
最後的 RS 庫存
  • RS庫存編號 249-9339
  • 製造零件編號 RS60N1219005
小計(1 件)
TWD367.00(不含稅)
TWD367.00/件
有庫存
  • RS庫存編號 474-9030
  • 製造零件編號 RJ-13P 50k Ohm (503)
小計(1 件)
TWD149.00(不含稅)
TWD149.00/件
暫時缺貨
  • RS庫存編號 829-014
  • 製造零件編號 SR1M-125
小計(1 件)
TWD43,755.00(不含稅)
TWD43,755.00/件
暫時缺貨
  • RS庫存編號 522-0883P
  • 製造零件編號 3362P-1-102LF
小計 1 件 (以管提供)
TWD27.00(不含稅)
TWD27.00/件
有庫存
  • RS庫存編號 259-6979
小計(1 包,共 5 件)
TWD397.00(不含稅)
TWD79.40/件
有庫存
  • RS庫存編號 522-0653P
  • 製造零件編號 3310Y-001-202L
小計 1 件 (以管提供)
TWD130.00(不含稅)
TWD130.00/件
暫時缺貨
  • RS庫存編號 252-7033
  • 製造零件編號 C290 VARIOUS
小計(1 包,共 20 件)
TWD350.00(不含稅)
TWD17.50/件
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