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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3386P-1-203LF


Trimmer Resistors - Through Hole 3/8" 20Kohms 10% 0.5Watts Square
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Bourns 1411
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USD 0.7026
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3296W-1-503


Trimmer Resistors - Through Hole 3/8" 50Kohms Sealed Vertical Adjust
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Bourns 74
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USD 1.8664
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385000130220015


Potentiometers RESISTIVE & OPTICAL
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Honeywell 54
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USD 43.3875
Multiples of: 1

72N4N048S203W


Precision Potentiometers INDUSTRIAL POTS
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Honeywell 54
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USD 80.8236
Multiples of: 1

70J1G032P502U


Potentiometer - Single (Conductive Plastic) - Plain 0.250" (6.35mm) Long - 1/2" Shaft Length - 5K Ohm - ±10%.
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Honeywell 54
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USD 414.4048
Multiples of: 1

3386U-1-103LF


Bourns Trimmer Resistors - Through Hole 38" 10Kohms 10% 0.5Watts Square
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Bourns 53
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USD 0.767
Multiples of: 1

67YR500KLF


Trimmer Resistors - Through Hole 3/8" Squ 500K 10%
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TT Electronics 53
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USD 0.8809
Multiples of: 100

RK08H113003G


Potentiometers 50 KOhms 30%
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ALPS 53
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USD 1.1012
Multiples of: 1

T7YA102MB40


Vishay Sfernice Trimmer Resistors - Through Hole
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Vishay 53
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USD 2.53
Multiples of: 1

3362P-1-101LF


Trimmer Resistors - Through Hole 1/4IN SQ 100 OHM 10% 0.5WATTS
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Bourns 14
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USD 0.186
Multiples of: 5

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