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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RV112BF-40E1-25A-B10K-0068


Potentiometers 11mm Linear 10K Dual Unit-Vert PC MT
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Alpha Taiwan 541
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AUD 1.9038
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PVG5A101C03R00


Trimmer Resistors - SMD 100ohms 5mm 11turn Top Adjust
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Murata 541
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AUD 2.0429
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RK09D113000K


Potentiometers 9MM 50K V/ADJ w/ center detent
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ALPS 540
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AUD 0.5587
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RV16AF-10-15S1-A500K


Potentiometers Audio Screwdvr 500K Solder Lugs
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Alpha Taiwan 540
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AUD 1.1698
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3361S-1-105GLF


Trimmer Resistors - SMD 14" SQ 1M 10% 0.5WATTS
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Bourns 539
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AUD 1.475
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M64Y104KB40


100 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 21.0 Turn Top Adjustment
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Vishay 539
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AUD 2.4444
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PTL30-15O0-102B2


Slide Potentiometers 1Kohms Travel=30mm
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Bourns 539
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AUD 2.6154
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PTD904-2220K-B203


Potentiometers 20K LINEAR
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Bourns 539
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AUD 3.1429
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PTB0144-2010BPA103


10 kOhms 0.25W, 1/4W Through Hole Slide Potentiometer Top Adjustment Type
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Bourns 537
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AUD 6.3556
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3299X-1-103LF


10 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 25.0 Turn Side Adjustment
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Bourns 478
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AUD 2.4444
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