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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PTV111-4425A-B105


Bourns Potentiometers 1M LINEAR 20%
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Bourns 682
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AUD 1.1788
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RV121SF-30-009J-A53-00K


Potentiometers 12mm Audio 5K W/SW
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Alpha Taiwan 682
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AUD 1.5164
Multiples of: 1

89WR5KLF


Trimmer Resistors - Through Hole 3/4" Rect 5K 10% 20-turn
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TT Electronics 682
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AUD 2.1694
Multiples of: 1

Y005610K0000K0L


Trimmer Resistors - Through Hole 1280G 10Kohms 10.0% 3/4w
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Vishay 681
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AUD 38.0507
Multiples of: 1

RV120F-20-15F-A50K-0075


Potentiometers Audio D-Shaft 50K
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Alpha Taiwan 681
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AUD 1.4457
Multiples of: 1

3214J-2-103E


Res Cermet Trimmer 10K Ohm 10% 0.25W(1/4W) 5(Elec)Turns 1.5mm (4.8 X 5 X 3.71mm) J-Hook SMD T/R
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Bourns 681
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AUD 2.066
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64WR200LF


200 Ohms 0.25W, 1/4W PC Pins Through Hole Trimmer Potentiometer Cermet 12.0 Turn Top Adjustment
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TT Electronics 641
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AUD 1.8576
Multiples of: 1

ST-32ETB503


50 kOhms 0.125W, 1/8W Gull Wing Surface Mount Trimmer Potentiometer Cermet 1.0 Turn Top Adjustment
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Nidec Copal 585
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AUD 1.147
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3214G-1-502E


5 kOhms 0.25W, 1/4W Gull Wing Surface Mount Trimmer Potentiometer Cermet 5.0 Turn Side Adjustment
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Bourns 551
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AUD 1.9701
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G43BT-B502


Potentiometer: mounting; single turn; 5kΩ; 250mW; SMD; ±20%; linear
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Tocos 364
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AUD 0.5767
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