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    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

    6418 產品顯示為 Variable Resistors

    1 的 321
    Bourns 91 5kΩ Rotary Potentiometer 1-Gang Panel Mount, 91A1A-B28-A13L
    • RS庫存編號 789-9447
    • 製造零件編號 91A1A-B28-A13L
    個
    TWD235.00
    Vishay 64Y Series 19 (Electrical), 22 (Mechanical)-Turn Through Hole Trimmer Resistor with Pin Terminations, 20kΩ ±10%
    • RS庫存編號 154-2448
    • 製造零件編號 M64Y203KB40
    個
    TWD99.00
    2kΩ, Through Hole Trimmer Potentiometer 0.25W Top Adjust Bourns, 3266
    • RS庫存編號 521-9243
    • 製造零件編號 3266W-1-202LF
    個
    TWD107.00
    Vishay P16 2.2kΩ Rotary Potentiometer 1-Gang Panel Mount, P16NM222MAB15
    • RS庫存編號 790-4173
    • 製造零件編號 P16NM222MAB15
    個
    TWD941.00
    1kΩ, Through Hole Trimmer Potentiometer 0.25W Top Adjust Nidec Components, RJ-5
    • RS庫存編號 474-7242
    • 製造零件編號 RJ-5EW 1k Ohm
    個
    TWD159.00
    10kΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Nidec Components, CT-6
    • RS庫存編號 474-6996
    • 製造零件編號 CT-6EP 10k Ohm
    個 (每包:5個)
    TWD25.20
    50kΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Nidec Components, CT-6
    • RS庫存編號 474-7012
    • 製造零件編號 CT-6EP 50k Ohm
    個 (每包:5個)
    TWD26.60
    200Ω, Through Hole Trimmer Potentiometer 0.25W Top Adjust Bourns, 3266
    • RS庫存編號 521-9221
    • 製造零件編號 3266W-1-201LF
    個
    TWD111.00
    SMD Trimmer Potentiometer 0.25W Top Adjust Bourns, PVG3A
    • RS庫存編號 223-1725P
    • 製造零件編號 PVG3A104C01R00
    個 (以每卷裝提供)
    TWD32.80
    TE Connectivity M 100kΩ Rotary Potentiometer 1-Gang Panel Mount, 404802692031
    • RS庫存編號 162-861
    • 製造零件編號 404802692031
    個
    TWD635.00
    RS PRO 22mm Silver Potentiometer Knob for 6.4mm Shaft Splined
    • RS庫存編號 499-949
    個
    TWD173.00
    Vishay P16 100kΩ Rotary Potentiometer 1-Gang Panel Mount, P16NM104MAB15
    • RS庫存編號 790-4186
    • 製造零件編號 P16NM104MAB15
    個
    TWD941.00
    5kΩ, Through Hole Trimmer Potentiometer 0.25W Top Adjust Vishay Foil Resistors, 1240
    • RS庫存編號 173-3003
    • 製造零件編號 Y40535K00000J0L
    每個 (每套 25 個)
    TWD2,252.30
    10kΩ, Through Hole Trimmer Potentiometer 0.2W Top Adjust Bourns, 3306
    • RS庫存編號 743-2350
    • 製造零件編號 3306F-1-103
    個
    TWD14.00
    2kΩ, Through Hole Trimmer Potentiometer 0.5W Top Adjust Nidec Components, CT6
    • RS庫存編號 896-7162
    • 製造零件編號 CT-6EV 2kR
    每個 (每盤 5 個)
    TWD27.00
    200Ω, Through Hole Trimmer Potentiometer 0.5W Side Adjust Bourns, 3296
    • RS庫存編號 743-2338
    • 製造零件編號 3296P-1-201LF
    個
    TWD65.00
    Bourns PTV09 100kΩ Rotary Potentiometer 1-Gang Panel Mount, PTV09A-4225F-B104
    • RS庫存編號 827-5022
    • 製造零件編號 PTV09A-4225F-B104
    個
    TWD28.00
    RS PRO 10mm Black Potentiometer Knob for 3.2mm Shaft Splined
    • RS庫存編號 465-9820
    個
    TWD41.00
    Alps Alpine RK11K 10kΩ Rotary Carbon Film Potentiometer, Panel Mount (Through Hole), RK11K1120A2B
    • RS庫存編號 263-3135
    • 製造零件編號 RK11K1120A2B
    個
    TWD104.00
    Sifam 29.5mm Black Potentiometer Knob for 6mm Shaft Splined, S290006-BLK
    • RS庫存編號 225-754
    • 製造零件編號 S290006-BLK
    個 (每包:10個)
    TWD160.60
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