Potentiometers, Trimmers & Rheostats

A potentiometer, trimmer, and rheostat are all three types of resistors that are adjustable. They are used to control the electric current by varying the resistance in the circuit. A potentiometer is an adjustable three-terminal resistor with a sliding contact (wiper) that moves across a resistive element to change resistance in a circuit. They are used in audio controls, light dimmers, and other applications that require adjustable resistance in the circuit. A trimmer is a miniature version of a potentiometer, and it’s used to make fine adjustments in electronics circuits. It can be used for voltage and current adjustments, and for tuning circuits for maximum performance. A rheostat is an adjustable two-terminal rotor, and it’s used to control the current in a circuit. It’s often used to control the speed of a motor or other electrical device.
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TSM4YJ202KR05


2 kOhms 0.25W, 1/4W J Lead Surface Mount Trimmer Potentiometer Cermet 13.0 Turn Top Adjustment
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Vishay 509
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AUD 7.0714
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PT10LH01-203A2020


Trimmer Resistors - Through Hole 20Kohms 10mm Rnd Side adj
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Amphenol 508
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AUD 0.4893
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3362P-1-101RLF


Trimmer Resistors - Through Hole 1/4" TRIMPOT 100uH SQ ST CERMET
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Bourns 508
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AUD 1.9423
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3329H-1-224LF


Trimmer Resistors - Through Hole 1/4" RD TRIMPOT 220K ST CERMET
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Bourns 508
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AUD 2.5577
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PTV09A-4015U-B103


Res Carbon Film POT 10K Ohm 20% 0.05W(1/20W) 1(Elec)/1(Mech)Turn 6mm (11.4 X 12.5 X 18.8mm) Pin Bracket Mount/Through Hole
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Bourns 507
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AUD 0.5856
Multiples of: 100

RV16AF-20-15K-C500K-3LA


Potentiometers Linear 500K Knurled PC Mount
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Alpha Taiwan 506
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AUD 1.0236
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PTA4553-2015DPB102


Slide Potentiometers PANEL CONTROL SLIDE CARBON
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Bourns 506
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AUD 1.4776
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PDB181-P430F-103B


Bourns Potentiometers PANEL CONTROL 17MM-ST-CARBON
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Bourns 502
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AUD 1.2051
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3224W-1-501E


SMD-3P,5x4.8mm Potentiometers, Variable Resistors ROHS
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Guosheng 419
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AUD 1.136
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6637S-1-502


Precision Potentiometers 5K 10% Bushing Mnt
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Bourns 281
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AUD 48.6463
Multiples of: 1

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