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

6609 표시되는 제품 Variable Resistors

269 / 331
재고있음
  • RS 제품 번호 521-9079P
  • 제조사 부품 번호 3006P-1-201LF
Subtotal 1 unit (supplied in a tube)
₩13.20
₩13.20/unit
재고있음
  • RS 제품 번호 243-9596
  • 제조사 부품 번호 040-4060
Subtotal (1 unit)
₩23.00
₩23.00/unit
제조사가 재고 비축중
  • RS 제품 번호 792-609
  • 제조사 부품 번호 K-90-M
Subtotal (1 unit)
₩22.43
₩22.43/unit
재고있음
  • RS 제품 번호 769-2221P
  • 제조사 부품 번호 PV37W103C01B00
Subtotal 1 unit (supplied in a box)
₩16.30
₩16.30/unit
재고있음
  • RS 제품 번호 445-912P
  • 제조사 부품 번호 3266P-1-103LF
Subtotal 2 units (supplied in a tube)
₩49.50
₩24.75/unit
재고있음
  • RS 제품 번호 790-4249P
  • 제조사 부품 번호 P10XXAI504KB30
Subtotal 1 unit (supplied in a box)
₩70.00
₩70.00/unit
마지막 RS 재고
  • RS 제품 번호 410-378P
  • 제조사 부품 번호 248FGJS0XB25502MA
Subtotal 1 unit (supplied in a box)
₩129.30
₩129.30/unit
재고있음
  • RS 제품 번호 488-5293P
  • 제조사 부품 번호 3306P-1-501
Subtotal 10 units (supplied in a bag)
₩25.60
₩2.56/unit
현재 액세스할 수 없는 재고 정보
  • RS 제품 번호 167-9940
  • 제조사 부품 번호 T93XA102KT20
Subtotal (1 tube of 50 units)
₩638.25
₩12.765/unit
재고있음
  • RS 제품 번호 743-2259P
  • 제조사 부품 번호 3006P-7-201LF
Subtotal 1 unit (supplied in a tube)
₩14.40
₩14.40/unit
제한된 재고
  • RS 제품 번호 788-7829
  • 제조사 부품 번호 RT025AS2R20KB
Subtotal (1 unit)
₩2,722.00
₩2,722.00/unit
재고있음
  • RS 제품 번호 522-5355P
  • 제조사 부품 번호 93R1A-R22-A23L
Subtotal 1 unit (supplied in a bag)
₩58.30
₩58.30/unit
현재 액세스할 수 없는 재고 정보
  • RS 제품 번호 486-7396P
  • 제조사 부품 번호 TSM4YL502KB25
Subtotal 5 units (supplied in a box)
₩456.20
₩91.24/unit
재고있음
  • RS 제품 번호 790-4173P
  • 제조사 부품 번호 P16NM222MAB15
Subtotal 1 unit (supplied in a box)
₩239.80
₩239.80/unit
재고있음
  • RS 제품 번호 522-0035P
  • 제조사 부품 번호 3296Y-1-100LF
Subtotal 1 unit (supplied in a tube)
₩14.60
₩14.60/unit
재고있음
  • RS 제품 번호 743-2344P
  • 제조사 부품 번호 3296Z-1-103LF
Subtotal 1 unit (supplied in a tube)
₩14.00
₩14.00/unit
재고있음
  • RS 제품 번호 790-4423P
  • 제조사 부품 번호 P16NP471MAB15
Subtotal 1 unit (supplied in a bag)
₩124.80
₩124.80/unit
재고있음
  • RS 제품 번호 691-7409P
  • 제조사 부품 번호 3314J-1-103E
Subtotal 5 units (supplied on a continuous strip)
₩59.90
₩11.98/unit
재고있음
  • RS 제품 번호 522-5153P
  • 제조사 부품 번호 91A1A-B28-D15L
Subtotal 1 unit (supplied in a bag)
₩63.00
₩63.00/unit
일시적 품절
  • RS 제품 번호 764-307
  • 제조사 부품 번호 ACCKPR1817NLT6
Subtotal (1 unit)
₩12.28
₩12.28/unit
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