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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SM-42W103


Trimmer Resistors - SMD 10 KW 5mm SMD 11 turn, J-lead, top-adjustment
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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USD 3.2469
Multiples of: 1

3006P-1-102Z


Trimmer Resistors - Through Hole 1K 3/4" 10% Sealed Multi Turn
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Bourns 0
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USD 3.2518
Multiples of: 300

3266W-1-253


Trimmer Resistors - Through Hole 1/4" 25Kohms 10% SQ W/Standoff Sealed
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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USD 3.2558
Multiples of: 1

450D103KSD8


POT 10K OHM 1/2W CARBON LINEAR
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

CTS 0
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USD 3.2589
Multiples of: 1

450D104KSD7


POT 100K OHM 1/3W CARBON LINEAR
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

CTS 0
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USD 3.2589
Multiples of: 1

3006P-1-500Z


Trimmer Resistors - Through Hole 50ohm 34" 10% Sealed Multi Turn
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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USD 3.2676
Multiples of: 300

91A1A-B28-A25L


1M Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Cermet 2W PC Pins
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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USD 3.2694
Multiples of: 1

91A1D-B20-D15L


Bourns Potentiometers 10K 20% 58" SQ ST
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USD 3.2724
Multiples of: 1

SM-3W 500K??(504)


SM3W 500K504 nidec copal trimmer smd variable resistors passive components
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USD 3.2744
Multiples of: 1

PTR901-2020K-B504


Potentiometers 20MM SHAFT 500KOHMS LIN NO DET
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

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USD 3.2793
Multiples of: 432

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