About Potentiometers, Trimmers & Rheostats

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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3046L-3-103


Slide Potentiometers 10KOHMS 0.35" RANGE/TRAVEL
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Bourns 48
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USD 12.397
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P8PY472KB25


Trimmer Resistors - Through Hole 4.7Kohms 10%
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Vishay 48
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USD 12.5264
Multiples of: 1

3046L-3-203


Slide Potentiometers 20KOHMS 0.35" RANGE/TRAVEL
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USD 12.54
Multiples of: 1

P16WP102MAB15


Potentiometers 1Kohms 20% Linear Plastic White
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USD 13.041
Multiples of: 1

3005P-1-101


Trimmer Resistors - Through Hole 100ohms 3/4inch Rectangular Cermet
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Bourns 48
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USD 13.869
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3046L-2-102


Slide Potentiometers 1KOHMS 0.25" RANGE/TRAVEL
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USD 14.1507
Multiples of: 1

657-0-0-503


Precision Potentiometers 5/8"SQ 50Kohms 20% Round SS Shaft
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USD 14.208
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P11S2V0FGSY00472MA


Vishay Sfernice Potentiometers 12.5mm 4.7Kohms 20%
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USD 14.2255
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3046L-2-252


Slide Potentiometers 2.5KOHMS 0.25" RANGE/TRAVEL
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Bourns 48
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USD 14.2477
Multiples of: 1

RJ50FP101


Trimmer Resistors - Through Hole TRIMMER-1/4" ST CERMET MIL-SPEC
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USD 14.4173
Multiples of: 5

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