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

3779 표시되는 제품 Variable Resistors

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재고있음
  • RS 제품 번호 173-0729
Subtotal (1 Box of 50 units)
₩310,147.50
₩31.81/unit
재고있음
  • RS 제품 번호 100-1111
  • 제조사 부품 번호 3314G-1-201E
Subtotal (1 pack of 10 units)
₩15,619.50
₩8.01/unit
재고있음
  • RS 제품 번호 785-9521P
  • 제조사 부품 번호 3386P-1-252LF
Subtotal 1 unit (supplied in a tube)
₩2,028.00
₩10.40/unit
재고있음
  • RS 제품 번호 181-4476P
  • 제조사 부품 번호 3361P-1-104GLF
Subtotal 20 units (supplied on a continuous strip)
₩23,400.00
₩5.995/unit
재고있음
  • RS 제품 번호 691-2482P
  • 제조사 부품 번호 3223W-1-103E
Subtotal 1 unit (supplied on a continuous strip)
₩7,429.50
₩38.10/unit
재고있음
  • RS 제품 번호 186-053
  • 제조사 부품 번호 M70Y103KB25
Subtotal (1 unit)
₩47,658.00
₩244.40/unit
일시적 품절
  • RS 제품 번호 243-9565
  • 제조사 부품 번호 023-4510
Subtotal (1 Box of 100 units)
₩774,540.00
₩39.723/unit
일시적 품절
  • RS 제품 번호 244-3977
  • 제조사 부품 번호 FT-63ETS201
Subtotal (1 pack of 10 units)
₩6,337.50
₩3.25/unit
재고있음
Better World
  • RS 제품 번호 125-4406
  • 제조사 부품 번호 XB5AD912R10K
Subtotal (1 unit)
₩128,906.70
₩661.06/unit
재고있음
  • RS 제품 번호 181-4488
  • 제조사 부품 번호 PTV09A-4025F-B103
Subtotal (1 pack of 5 units)
₩6,981.00
₩7.16/unit
재고있음
  • RS 제품 번호 410-520P
  • 제조사 부품 번호 248BBHS0XB25503MA
Subtotal 1 unit (supplied in a box)
₩26,988.00
₩138.40/unit
일시적 품절
  • RS 제품 번호 233-0730
  • 제조사 부품 번호 3299Y-1-502LF
Subtotal (1 tube of 100 units)
₩296,595.00
₩15.206/unit
재고있음
  • RS 제품 번호 144-2070
  • 제조사 부품 번호 89PR5KLFTB
Subtotal (1 tube of 25 units)
₩60,060.00
₩12.316/unit
일시적 품절
  • RS 제품 번호 244-4026
  • 제조사 부품 번호 M-1303 5K
Subtotal (1 tray of 5 units)
₩205,764.00
₩211.04/unit
재고있음
  • RS 제품 번호 226-000
  • 제조사 부품 번호 C290-BLK
Subtotal (1 pack of 10 units)
₩6,708.00
₩3.44/unit
마지막 RS 재고
  • RS 제품 번호 852-4614
  • 제조사 부품 번호 008T290
Subtotal (1 unit)
₩22,327.50
₩114.50/unit
재고있음
  • RS 제품 번호 522-0732
  • 제조사 부품 번호 3329H-1-103LF
Subtotal (1 unit)
₩3,666.00
₩18.80/unit
일시적 품절
  • RS 제품 번호 144-2235
  • 제조사 부품 번호 64XR1KLF
Subtotal (1 pack of 5 units)
₩18,817.50
₩19.30/unit
현재 비가용
  • RS 제품 번호 172-2304
Subtotal (1 Bag of 125 units)
₩134,062.50
₩5.505/unit
재고있음
  • RS 제품 번호 445-903
  • 제조사 부품 번호 TC33X-1-103E
Subtotal (1 Bag of 2 units)
₩565.50
₩1.45/unit
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