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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409N2500


Potentiometers 409 Series Industrial Potentiometer, Cermet Element, PC Terminals, 1 W Power Rating, 2.5 K Ohms Resistance Value
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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.

Honeywell 0
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USD 186.2668
Multiples of: 1

MR46B-10-500


Precision Potentiometers 5W 500ohms 5%
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ETI Systems 0
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USD 186.4505
Multiples of: 5

RCS1K5E


Ohmite Rheostats 7.5watt 1.5.ohm 305V Std Shaft
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Ohmite 0
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USD 188.2238
Multiples of: 1

RCS5K0E


Rheostats 7.5watt 5K 305V Std Shaft
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Ohmite 0
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USD 188.2468
Multiples of: 1

REL10KE


Ohmite Rheostats 12.5watt 10K 305V Locking Shaft
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Ohmite 0
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USD 193.5036
Multiples of: 1

RCL500


Rheostats 7.5watt 500ohm 305V Locking Shaft
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Ohmite 0
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USD 193.6294
Multiples of: 1

RLS7R5


Rheostats 150watt 75ohm 1200V Std Shaft
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Ohmite 0
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USD 194.0905
Multiples of: 5

RCL10R


Rheostats 7.5watt 10ohm 305V Locking Shaft
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Ohmite 0
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USD 194.7439
Multiples of: 1

REE10KE


Rheostats 12.5watt 10K 305V Enclosed
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Ohmite 0
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USD 195.6908
Multiples of: 1

43C250K


Potentiometers 2W Pwr Rating,50kOhm Potentiometer
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Honeywell 0
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USD 196.04
Multiples of: 1

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