About Potentiometers, Trimmers & Rheostats

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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Hot 3296W-1-104LF


Trimmer Resistors - Through Hole 3/8" 100Kohms Sealed Vertical Adjust
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Bourns Availability : 8061
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USD 0.4567

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PTC15NV02-105A2020


Trimmer Resistors - Through Hole
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Amphenol Availability : 2267
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USD 1.2843

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72PMR1K


Trimmer Resistors - Through Hole 3/8" Squ 1K 10%
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TT Electronics Availability : 2265
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USD 4.1154

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1825261-2


Switch Slide DPDT Top Slide 20VAC 20VDC 0.4VA PC Pins Bracket Mount/Through Hole Tray
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TE Connectivity Availability : 2259
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USD 1.504

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PT15NH06-103A2020


Trimmer Resistors - Through Hole 10Kohms 15mm Rnd
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Amphenol Availability : 2258
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USD 0.4038

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G32AT-B203


Potentiometer: mounting; single turn; 20kΩ; 125mW; SMD; ±20%
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Tocos Availability : 2257
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USD 0.343

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PVG5A100C03R00


Trimmer Resistors - SMD 10ohms 5mm 11turn Top Adjust
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Murata Availability : 2256
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USD 2.0718

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PTC15NV02-473A2020


Trimmer Resistors - Through Hole
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Amphenol Availability : 2249
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USD 1.221

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R16148-1B-2-B10K


Potentiometer: shaft; single turn; 10kO; 125mW; ±20%; THT; 6mm
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SR Passives Availability : 2239
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USD 0.392

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3296P-1-505LF


5 MOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 25.0 Turn Side Adjustment
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Bourns Availability : 2226
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USD 1.0293

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RS30111A9012


Slide Potentiometers 10K OHM "B" TAPER 30mm TRAVEL
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ALPS Availability : 2218
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USD 0.8249

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37PR2KLF


Trimmer Resistors - Through Hole 9mm 2K Open Type Trimmer
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TT Electronics Availability : 2218
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USD 0.5005

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M63P103KB30T607


Trimmer Resistors - Through Hole 3/8"SQ 10Kohms 10% Single Turn Cermet
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Vishay Availability : 2217
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USD 4.136

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VTL2K


2K TRIMPOT TOP ADJ KVSF637A TRIMMER VERTICAL/TOP ADJ
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Netech Availability : 2285
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USD 0.0627

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RV100F-30-4K1B-B10K-B301


Potentiometers 10mm Linear 10K PC Mount
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Alpha Taiwan Availability : 2179
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USD 0.737

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RS08U11AZ001


Slide Potentiometers Horizontal type / Single-unit / Travel 8mm / 10k ohm, 1B / Lever length=0.6mm
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ALPS Availability : 2121
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USD 0.5415

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PT10LH01-223A2020-S


Trimmer Resistors - Through Hole 22Kohms 10mm Rnd Side adj Steel lead
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Amphenol Availability : 2101
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USD 0.2142

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TC42X-2-103E


Trimmer Resistors - SMD 10K 2mm SMD Single Turn
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Bourns Availability : 1935
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USD 0.1097

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PV36W502C01B00


Res Cermet Trimmer 5K Ohm 10% 1/2W 25(Elec)Turn 2mm (9.6 X 5 X 11.3mm) Pin Thru-Hole Bulk
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Bourns Availability : 1746
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USD 0.9688

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22AR50KLFTR


50 kOhms 0.125W, 1/8W J Lead Surface Mount Trimmer Potentiometer Cermet 1.0 Turn Top Adjustment
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TT Electronics Availability : 174
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USD 1.1025

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