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

6608 표시되는 제품 Variable Resistors

190 / 331
현재 비가용
  • RS 제품 번호 249-1499
  • 제조사 부품 번호 P16WP472MAB15
Subtotal (1 Box of 20 units)
₩2,632.70
₩131.635/unit
일시적 품절
  • RS 제품 번호 737-7666
  • 제조사 부품 번호 91A1A-B24-B15L
Subtotal (1 unit)
₩63.20
₩63.20/unit
재고있음
  • RS 제품 번호 788-5170
  • 제조사 부품 번호 ACCRFCADRANCG57
Subtotal (1 unit)
₩443.30
₩443.30/unit
재고있음
  • RS 제품 번호 173-760
  • 제조사 부품 번호 157B103MX9001
Subtotal (1 unit)
₩444.30
₩444.30/unit
현재 비가용
  • RS 제품 번호 789-9380
  • 제조사 부품 번호 3543S-1-103L
Subtotal (1 unit)
₩329.60
₩329.60/unit
재고있음
  • RS 제품 번호 144-2098
  • 제조사 부품 번호 89PR20KLFTB
Subtotal (1 tube of 25 units)
₩262.10
₩10.484/unit
일시적 품절
  • RS 제품 번호 144-2109
  • 제조사 부품 번호 64YR50KLF
Subtotal (1 tube of 50 units)
₩795.80
₩15.916/unit
재고있음
  • RS 제품 번호 522-0445
  • 제조사 부품 번호 3310C-001-104L
Subtotal (1 unit)
₩24.40
₩24.40/unit
재고있음
  • RS 제품 번호 486-7510
  • 제조사 부품 번호 TS53YL502MR10
Subtotal (1 pack of 5 units)
₩66.70
₩13.34/unit
재고있음
  • RS 제품 번호 167-4686
  • 제조사 부품 번호 PTA2043-2015DPB103
Subtotal (1 tray of 100 units)
₩820.00
₩8.20/unit
일시적 품절
  • RS 제품 번호 244-4308
  • 제조사 부품 번호 SM-42TW202
Subtotal (1 reel of 250 units)
₩4,229.00
₩16.916/unit
재고있음
  • RS 제품 번호 167-4524
  • 제조사 부품 번호 3548S-1AA-102A
Subtotal (1 tray of 5 units)
₩1,142.80
₩228.56/unit
재고있음
  • RS 제품 번호 144-2242
  • 제조사 부품 번호 67XR5KLF
Subtotal (1 pack of 5 units)
₩69.90
₩13.98/unit
일시적 품절
  • RS 제품 번호 269-2425
  • 제조사 부품 번호 PRS11R-215F-S103B1
Subtotal (1 unit)
₩26.60
₩26.60/unit
재고있음
  • RS 제품 번호 100-1133
  • 제조사 부품 번호 3314G-1-102E
Subtotal (1 pack of 10 units)
₩90.90
₩9.09/unit
일시적 품절
  • RS 제품 번호 167-3488
  • 제조사 부품 번호 3296P-1-202LF
Subtotal (1 tube of 50 units)
₩610.50
₩12.21/unit
현재 이용 불가
  • RS 제품 번호 708-714
Subtotal (1 unit)
₩13.20
₩13.20/unit
마지막 RS 재고
  • RS 제품 번호 763-7151
  • 제조사 부품 번호 Y40531K00000J0L
Subtotal (1 unit)
₩852.98
₩852.98/unit
재고있음
  • RS 제품 번호 737-7717
  • 제조사 부품 번호 H-38-11
Subtotal (1 pack of 10 units)
₩58.80
₩5.88/unit
재고있음
  • RS 제품 번호 467-6752
Subtotal (1 pack of 5 units)
₩14.90
₩2.98/unit
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