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
Potentiometer Accessories
Potentiometer Accessories
Potentiometer Knobs
Potentiometer Knobs
Potentiometers
Potentiometers
Rheostat Accessories
Rheostat Accessories
Rheostats
Rheostats
Trimmer Potentiometer Accessories
Trimmer Potentiometer Accessories
Trimmer Potentiometers
Trimmer Potentiometers

6688 표시되는 제품 Variable Resistors

정렬 기준
209 / 335
재고있음
Alps Alpine RK09L 10 kΩ Rotary Potentiometer 1-Turns Panel Mount, Through Hole
  • RS 제품 번호 729-3423
  • 제조사 부품 번호 RK09L1140A2U
Subtotal (1 unit)
₩18.20
₩18.20/unit
재고있음
20 kΩ, Through Hole Trimmer Potentiometer, Pin 1 W Side Adjust Vishay, 70Y
  • RS 제품 번호 186-069P
  • 제조사 부품 번호 M70Y203KB25
Subtotal 1 unit (supplied in a bag)
₩256.60
₩256.60/unit
일시적 품절
1 kΩ, Through Hole Trimmer Potentiometer, Pin 0.25 W Side Adjust Bourns, 3266
  • RS 제품 번호 167-3489
  • 제조사 부품 번호 3266X-1-102LF
Subtotal (1 tube of 50 units)
₩990.20
₩19.804/unit
재고있음
TE Connectivity 18.8 mm Knob Diameter Black Potentiometer Knob for 6.35 mm Shaft Circular, KLN700B1/4
  • RS 제품 번호 783-0123
  • 제조사 부품 번호 KLN700B1/4
Subtotal (1 unit)
₩74.40
₩74.40/unit
마지막 RS 재고
Vishay PE60 470 Ω Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS 제품 번호 168-0013
  • 제조사 부품 번호 PE60L0FLW471MA
Subtotal (1 Box of 5 units)
₩4,341.50
₩868.30/unit
재고있음
Bourns PTR90 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Through Hole, PTR901-2015K-B103
  • RS 제품 번호 827-5003
  • 제조사 부품 번호 PTR901-2015K-B103
Subtotal (1 unit)
₩27.50
₩27.50/unit
일시적 품절
200 kΩ, Through Hole Trimmer Potentiometer, Solder Pin 0.75 W Side Adjust TT Electronics/BI, 89
  • RS 제품 번호 144-2118
  • 제조사 부품 번호 89PR200KLFTB
Subtotal (1 tube of 25 units)
₩580.80
₩23.232/unit
재고있음
470 kΩ, Through Hole Trimmer Potentiometer, Solder Pin 0.5 W Top Adjust Bourns, 3386
  • RS 제품 번호 785-9540P
  • 제조사 부품 번호 3386P-1-474LF
Subtotal 1 unit (supplied in a tube)
₩10.10
₩10.10/unit
재고있음
Elma Potentiometer Knob Cap 21 mm, 040-4060, Green
  • RS 제품 번호 243-9594
  • 제조사 부품 번호 040-4060
Subtotal (1 Box of 100 units)
₩2,431.10
₩24.311/unit
재고있음
Surface Trimmer Potentiometer 0.15 W Top Adjust Bourns
  • RS 제품 번호 246-3326
  • 제조사 부품 번호 TC33X-2-203E
Subtotal (1 reel of 2500 units)
₩2,990.00
₩1.196/unit
마지막 RS 재고
1 kΩ, Surface Trimmer Potentiometer 0.5 W Top Adjust Vishay, TS7
  • RS 제품 번호 425-349
  • 제조사 부품 번호 TS7Y102KR32
Subtotal (1 reel of 750 units)
₩13,847.25
₩18.463/unit
재고있음
RS PRO 28 mm Knob Diameter Black, Red Potentiometer Knob for 6 mm Shaft Circular
  • RS 제품 번호 259-7023
Subtotal (1 pack of 5 units)
₩87.30
₩17.46/unit
재고있음
100 kΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Side Adjust Bourns, 3224
  • RS 제품 번호 691-2495
  • 제조사 부품 번호 3224J-1-104E
Subtotal (1 unit)
₩30.70
₩30.70/unit
재고있음
Vishay 14 mm Knob Diameter Black Knob for 6 mm Shaft Round Shaft, ACCKPR1417NLT6
  • RS 제품 번호 764-306
  • 제조사 부품 번호 ACCKPR1417NLT6
Subtotal (1 unit)
₩12.28
₩12.28/unit
재고있음
5 kΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Top Adjust Bourns, PVG5
  • RS 제품 번호 669-6682
  • 제조사 부품 번호 PVG5A502C03R00
Subtotal (1 unit)
₩20.90
₩20.90/unit
재고있음
Sifam 11.5 mm Knob Diameter Black Potentiometer Knob for 4 mm Shaft D Shaped, 3/03/DP110-004/237/233
  • RS 제품 번호 299-4890
  • 제조사 부품 번호 3/03/DP110-004/237/233
Subtotal (1 pack of 5 units)
₩22.90
₩4.58/unit
재고있음
RS PRO P25 10 kΩ Rotary Potentiometer 1-Turns 1-Gang Panel Mount
  • RS 제품 번호 173-0760
Subtotal (1 Box of 50 units)
₩4,892.60
₩97.852/unit
재고있음
Sifam 15.5 mm Knob Diameter Black Potentiometer Knob for 6.35 mm Shaft Circular, SP151 250 BLACK
  • RS 제품 번호 407-2453
  • 제조사 부품 번호 SP151 250 BLACK
Subtotal (1 pack of 10 units)
₩312.90
₩31.29/unit
재고있음
200 kΩ, Surface Trimmer Potentiometer, J-Hook 0.25 W Top Adjust Bourns, 3214
  • RS 제품 번호 240-1613
  • 제조사 부품 번호 3214W-1-204E
Subtotal (1 pack of 5 units)
₩93.50
₩18.70/unit
재고있음
20 kΩ, Through Hole Trimmer Potentiometer, Pin 0.25 W Top Adjust Vishay, T63
  • RS 제품 번호 167-9527
  • 제조사 부품 번호 T63YB203KT20
Subtotal (1 tube of 50 units)
₩1,065.70
₩21.314/unit
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