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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39SA-1RB-103


10k Ohm 1 Gang Linear Panel Mount Potentiometer Rotary, SPST 1.0 Kierros Conductive Plastic 0.25W, 1/4W PC Pins
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Bourns 485
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AUD 29.127
Multiples of: 1

T64H-20K


Potentiometer: mounting; single turn; 20kO; 500mW; ±20%; -55÷125°C
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SR Passives 484
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AUD 0.8867
Multiples of: 1

3362U-1-102LF


1 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 1.0 Turn Top Adjustment
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Bourns 484
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AUD 0.9732
Multiples of: 250

3362R-1-504LF


Trimmer Resistors - Through Hole 1/4"SQ 500KOHMS 10% 0.5WATTS
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Bourns 484
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AUD 0.9943
Multiples of: 1

RV16AF-10-15K-A1K-3LA


Potentiometers Audio Knurled 1K Solder Lugs
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Alpha Taiwan 484
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AUD 1.1698
Multiples of: 1

RV16AF-10-20R1-B1K-LA


Potentiometers Linear 1K Solder Lugs
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Alpha Taiwan 484
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AUD 1.1698
Multiples of: 1

RK09K12A0A6R


ALPS Potentiometers 50 KOhms 30%
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ALPS 484
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AUD 1.3326
Multiples of: 1

3386H-EY5-203LF


Trimmer Resistors - Through Hole 14W 20Kohm 10% Extended Shaft
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Bourns 484
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AUD 1.7216
Multiples of: 1

PDB182-K420K-504B


500k Ohm 2 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Carbon 0.125W, 1/8W PC Pins
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Bourns 484
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AUD 1.746
Multiples of: 1

PT6KV251A2020


Potentiometer: mounting; single turn, horizontal; 250O; 100mW
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Amphenol 482
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AUD 0.3711
Multiples of: 1

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