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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PTR901-2015K-B103


Res Carbon Film POT 10K Ohm 20% 0.05W(1/20W) 1(Elec)/1(Mech)Turns 6mm (28.4 X 9.5 X 11.3mm) Pin Panel Mount/Through Hole Automotive
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Bourns 904
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AUD 3.0866
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3386H-1-503LF


Trimmer Resistors - Through Hole 3/8" 50Kohms 10% 0.5Watts Square
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Bourns 594
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AUD 1.0168
Multiples of: 100

3386X-EY5-104LF


Trimmer Resistors - Through Hole TRIMMER - 38" SQ ST CERMET
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Bourns 451
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AUD 1.6171
Multiples of: 1

PTL30-15G1-103B1


10 kOhms 0.1W, 1/10W Through Hole Slide Potentiometer Top Adjustment Type
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Bourns 451
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AUD 1.8134
Multiples of: 1

1801JSMD-100K


Potentiometer: mounting; horizontal, multiturn; 100kO; 250mW; SMD
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SR Passives 451
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AUD 2.4866
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3224W-1-223E


Trimmer Resistors - SMD 4MM SQ MT CERMET TRIMMER SMD
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Bourns 451
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AUD 5.1923
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3009P-1-104LF


Trimmer Resistors - Through Hole 100Kohms 10% 3/4inch rectangular
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Bourns 450
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AUD 2.1179
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PTL30-15G0-504B2


Slide Potentiometers 500Kohms Travel=30mm
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Bourns 450
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AUD 2.2308
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3352W-1-501


Trimmer Resistors - Through Hole 3/8INRND 500 OHM 20% 0.5WATTS
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Bourns 450
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AUD 3.2836
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RK09K12A0A6R


ALPS Potentiometers 50 KOhms 30%
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ALPS 449
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AUD 1.253
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