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

6696 產品顯示為 Variable Resistors

排序方式
44 的 335
有庫存
  • RS庫存編號 521-9912
  • 製造零件編號 3296X-1-202LF
小計(1 件)
TWD64.00(不含稅)
TWD64.00/件
有庫存
  • RS庫存編號 691-7632P
  • 製造零件編號 3339P-1-103LF
小計 1 件 (以管提供)
TWD165.00(不含稅)
TWD165.00/件
暫時缺貨
  • RS庫存編號 161-6877
  • 製造零件編號 3852A-282-252AL
小計(1 托盤,共 45 件)
TWD14,062.50(不含稅)
TWD312.50/件
有庫存
  • RS庫存編號 243-9538
  • 製造零件編號 020-3525
小計(1 件)
TWD186.00(不含稅)
TWD186.00/件
最後的 RS 庫存
  • RS庫存編號 167-8736
  • 製造零件編號 P16NM222MAB15
小計(1 盒,共 20 件)
TWD14,566.00(不含稅)
TWD728.30/件
暫時缺貨
  • RS庫存編號 223-1722
  • 製造零件編號 PTD902-2015F-A103
小計(1 包,共 5 件)
TWD432.00(不含稅)
TWD86.40/件
有庫存
  • RS庫存編號 162-209
  • 製造零件編號 M43P102KB40
小計(1 件)
TWD141.00(不含稅)
TWD141.00/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 182-5660
  • 製造零件編號 M-1305 1K
小計(1 件)
TWD1,006.00(不含稅)
TWD1,006.00/件
有庫存
  • RS庫存編號 167-9501
  • 製造零件編號 534B1501JL
小計(1 盒,共 10 件)
TWD9,056.00(不含稅)
TWD905.60/件
有庫存
  • RS庫存編號 522-0530
  • 製造零件編號 3310H-001-102L
小計(1 件)
TWD295.00(不含稅)
TWD295.00/件
有庫存
  • RS庫存編號 790-4198
  • 製造零件編號 PRV6SAABJYB25502KA
小計(1 件)
TWD363.00(不含稅)
TWD363.00/件
有庫存
  • RS庫存編號 777-7331
小計(1 件)
TWD204.00(不含稅)
TWD204.00/件
暫時無法供應
  • RS庫存編號 652-4259
  • 製造零件編號 416PA101M
小計(1 包,共 10 件)
TWD294.00(不含稅)
TWD29.40/件
暫時無法供應
  • RS庫存編號 168-0050
  • 製造零件編號 P11L2V0FLSY00503KA
小計(1 盒,共 40 件)
TWD22,172.00(不含稅)
TWD554.30/件
有庫存
  • RS庫存編號 167-9490
  • 製造零件編號 533B1502JL
小計(1 盒,共 10 件)
TWD10,209.00(不含稅)
TWD1,020.90/件
暫時缺貨
  • RS庫存編號 243-9546
  • 製造零件編號 020-4510
小計(1 盒,共 100 件)
TWD14,360.00(不含稅)
TWD143.60/件
有庫存
  • RS庫存編號 743-2372
  • 製造零件編號 3314J-1-105E
小計(1 包,共 5 件)
TWD250.00(不含稅)
TWD50.00/件
有庫存
  • RS庫存編號 522-1000P
  • 製造零件編號 3362P-1-504LF
小計 1 件 (以管提供)
TWD36.00(不含稅)
TWD36.00/件
有庫存
  • RS庫存編號 181-243
  • 製造零件編號 PT10LV10-501A2020-S
小計(1 袋,共 25 件)
TWD352.50(不含稅)
TWD14.10/件
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