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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RV24AF-40-15R1-B5K-3LA


Potentiometers Linear 5K Vert Angle PC Mount
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Alpha Taiwan 753
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AUD 1.3095
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RV120F-10-15F-A1K-0075


Potentiometers Audio D-Shaft 1K
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Alpha Taiwan 753
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AUD 1.6063
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3214W-1-502G


Trimmer Resistors - SMD 4MM SQ 5KOHMS 10% 5TURN
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Bourns 753
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AUD 2.4808
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3386W-1-102LF


Trimmer Resistors - Through Hole 3/8" 1Kohms 10% 0.5Watts Square
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Bourns 752
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AUD 1.1297
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3214J-1-201E


200 Ohms 0.25W, 1/4W J Lead Surface Mount Trimmer Potentiometer Cermet 5.0 Turn Side Adjustment
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Bourns 752
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AUD 2.1476
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PTL30-15G1-105B2


Slide Potentiometers 1Mohms Travel=30mm Center Detent
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Bourns 752
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AUD 2.9231
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G43BT-B202


Potentiometer: mounting; single turn; 2kΩ; 250mW; SMD; ±20%; linear
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Tocos 751
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AUD 0.5623
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PDB182-K430K-503A


Res Carbon Film POT 50K Ohm 20% 0.06W 1(Elec)/1(Mech)Turns 6mm (41.5 X 17 X 21mm) Pin Panel Mount/Through Hole Automotive
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Bourns 751
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AUD 0.8464
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PTL45-15O0-103B2


Slide Potentiometers 10Kohm 20% 8.2mm PC Terminal
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Bourns 751
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AUD 2.2
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3269P-1-502GLF


Bourns Trimmer Resistors - SMD 14" 5Kohms 10% Horizontal Adjust
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Bourns 751
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AUD 3.6667
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