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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PTL20-10G0-103B2


Bourns Slide Potentiometers 10Kohms Travel=20mm
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Bourns 161
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AUD 1.4015
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3296W-1-500RLF


Bourns Trimmer Resistors - Through Hole 38IN 50 OHMS Sealed Vertical Adjust
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Bourns 161
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AUD 2.8492
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T7YB223MT20


Res Cermet Trimmer 22K Ohm 20% 0.5W(1/2W) 1(Elec)/1(Mech)Turn 4mm (7 X 6mm) Pin Thru-Hole Tube
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Vishay 161
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AUD 3.1582
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3299P-1-500LF


Trimmer Resistors - Through Hole 50ohms Standoffs Horizontal Adjust
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Bourns 161
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AUD 3.3077
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RK097111TZ17


ALPS Potentiometers 100 KOhms 30%
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ALPS 161
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AUD 3.7714
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Hot 91A1A-B28-D20L


100k Ohm 1 Gang Logarithmic Panel Mount Potentiometer None 1.0 Kierros Conductive Plastic 0.5W, 1/2W PC Pins
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Bourns 161
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AUD 6.8081
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PCW1J-C24-BCB202L


Potentiometers 2K 20% Sq 22mm Single Turn
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Bourns 161
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AUD 7.3159
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51CAD-E24-A15L


10k Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Cermet 1W PC Pins
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Bourns 161
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AUD 8.9746
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392JB250K


250k Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Conductive Plastic 0.5W, 1/2W PC Pins
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Honeywell 161
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AUD 27.2817
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RV120F-10-15F-A5K-0075


Potentiometers Audio D-Shaft 5K
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Alpha Taiwan 160
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AUD 1.6063
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