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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3224W-1-253E


25 kOhms 0.25W, 1/4W J Lead Surface Mount Trimmer Potentiometer Cermet 12.0 Turn Top Adjustment
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Bourns 1499
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AUD 3.3873
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3299W-1-503LF


50 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 25.0 Turn Top Adjustment
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Bourns 1498
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AUD 2.4444
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PT10LV10-204A2020-S


Trimmer Resistors - Through Hole 200Kohms 10mm Rnd Top adj Steel Lead
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Amphenol 1497
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AUD 0.4933
Multiples of: 1

SM-42TA104


100 kOhms 0.25W, 1/4W J Lead Surface Mount Trimmer Potentiometer Cermet 11.0 Turn Side Adjustment
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Nidec Copal 1497
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AUD 3.2817
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PT15LH06-201A2020


Trimmer Resistors - Through Hole 200ohms 15mm Rnd
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Amphenol 1495
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AUD 0.7635
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67WR2KLF


Trimmer Resistors - Through Hole 3/8" Squ 2K 10%
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TT Electronics 1494
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AUD 1.4527
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3306F-1-254


Trimmer Resistors - Through Hole 250K 25% 6mm Single Turn
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Bourns 1493
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AUD 0.3577
Multiples of: 100

3309W-1-202


2 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 1.0 Turn Side Adjustment
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Bourns 1493
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AUD 0.6274
Multiples of: 1

3309W-1-205


Trimmer Resistors - Through Hole 9MM RND 2MOHMS 25% 0.5WATTS
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Bourns 1493
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AUD 1.2548
Multiples of: 1

RK09L124000Z


ALPS Potentiometers 50 KOhms 20%
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ALPS 1493
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AUD 1.9032
Multiples of: 1

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