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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3290W-1-253


Trimmer Resistors - Through Hole 3/8" 25Kohms Sealed Vertical Adjust 5%
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USD 31.944
Multiples of: 1

SP22E-HT-10K


Precision Potentiometers 10K ohm 10%
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ETI Systems 0
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USD 31.97
Multiples of: 1

357B2502MAB251P22


Potentiometers
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Vishay 0
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USD 31.9804
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3260H-1-101


100 Ohms 0.25W, 1/4W PC Pins Through Hole Trimmer Potentiometer Wirewound 11.0 Turn Side Adjustment
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USD 31.9968
Multiples of: 50

534B1503JL


POTENTIOMETER, LINEAR, 50K, 2W, 5%
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USD 32.0001
Multiples of: 1

RV4NAYSK103A


Potentiometers 10K Ohm 10% 2W 6.35mm
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Honeywell 0
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USD 32.2087
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3121002050


Potentiometers 2kV 4.7Ohm-4.7kOhms 26x35mm 10W
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Kyocera AVX 0
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USD 32.2164
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H-851


Potentiometer Tools & Hardware 3223 - TRIMMER DESIGN KIT
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USD 32.2833
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502-0105


ROTARY POTENTIOMETER, 5KOHM, 5%, 2W
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Vishay 0
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USD 32.3644
Multiples of: 1

3547S-1AC-503B


Precision Potentiometers PRECISION POT-7/8" 22MM DIA 3T WW
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USD 32.4403
Multiples of: 1

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