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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RA20LASD251A


Res Wirewound POT 250 Ohm 10% 2W 1(Elec)/1(Mech)Turn 6.35mm (37.31 X 28.58 X 38.89mm) Solder Lug Panel Mount
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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 166.0843
Multiples of: 1

F78SA502-B1


Precision Potentiometers WOONSOCKET POSITION
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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 166.4061
Multiples of: 5

REE5K0


Rheostats 12.5watt 5K 305V Enclosed
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Ohmite 0
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USD 166.9433
Multiples of: 1

RCS75RE


Rheostats 7.5watt 75ohm 305V Std Shaft
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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.

Ohmite 0
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USD 166.9899
Multiples of: 1

RKS16R


Rheostats 100watt 16ohm 1000V Std Shaft
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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.

Ohmite 0
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USD 167.7375
Multiples of: 1

RCS25RE


Rheostats 7.5watt 25ohm 305V Std Shaft
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Ohmite 0
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USD 169.9935
Multiples of: 1

E-1000-F1-T3


Rheostats
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Ohmite 0
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USD 172.965
Multiples of: 1

3400S-1-104L


Bourns Precision Potentiometers 1-1316"100KOHMS 0.15% WW 10TURNS
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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 173.5597
Multiples of: 50

MW10B-3-10K


Precision Potentiometers ELECTRONIC COMPONENT
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ETI Systems 0
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USD 173.5624
Multiples of: 1

3400S-1-104


Precision Potentiometers 1-13/16"100KOHMS 0.15% WW 10TURNS
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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 173.9043
Multiples of: 1

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