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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ST-4ETA503


Res Cermet Trimmer 50K Ohm 20% 1/4W 1(Elec)/1(Mech)Turn 2.3mm (5 X 5.2 X 2.3mm) J-Hook SMD T/R
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Nidec Copal 1117
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AUD 1.2101
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1801JSMD-10K


Potentiometer: mounting; horizontal, multiturn; 10kO; 250mW; SMD
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SR Passives 292
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AUD 2.3194
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PSM01-082A-103B2


Slide Potentiometers 10Kohm 20% 8.2mm Snap-In Connector
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Bourns 148
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AUD 28.9284
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53C32MEG


Potentiometers Res POT 2M Ohm 2W Panel Mount
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Honeywell 148
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AUD 29.1604
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RV4NAYSD205B


Potentiometers RV4 Series Industrial Potentiometer, Conductive Plastic Element, Solder lug Terminals, 2 W Power Rating, 2 M Ohms Resistance Value
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Honeywell 148
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AUD 29.1604
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PDB12-H4151-203BF


Potentiometers 20K LINEAR 12MM
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Bourns 147
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AUD 0.9145
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3386C-1-105LF


1 MOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 1.0 Turn Side Adjustment
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Bourns 147
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AUD 1.5728
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3352V-1-253LF


Trimmer Resistors - Through Hole 3/8"round 25Kohms 0.5watt 20%
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Bourns 147
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AUD 3.3462
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590SX1N56S502SP


Potentiometers 5K Ohm 10% 12W 3.18mm
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Honeywell 147
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AUD 14.6269
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56AAD-C28-B15/R80L


Potentiometers 10Kohms SPDT CW
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Bourns 146
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AUD 23.4119
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