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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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 : 2462
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USD 1.0312

Multiples of: 25

CA9MH 50K


Potentiometer: mounting; single turn, vertical; 50kO; 0.15W; ±20%
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ACP Availability : 2457
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USD 0.1878

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3386P-1-473LF


Trimmer Resistors - Through Hole 3/8" 47Kohms 10% 0.5Watts Square
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Bourns Availability : 2453
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USD 0.6965

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PT15NV15-223A2020-PM-S


Trimmer Resistors - Through Hole 15mm controlsensor trimmr potentiometer
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Amphenol Availability : 2452
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USD 0.425

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RV16AF-10-15R1-B25K


Potentiometers Linear B25K Solder Lugs
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Alpha Taiwan Availability : 2447
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USD 0.5394

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PV37W502C01B00


Trimmer Resistors - Through Hole 5Kohms Sealed 6mm SQ 12turn
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Murata Availability : 2446
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USD 1.0346

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PT15LV18-502A2020


Trimmer Resistors - Through Hole 5Kohms 15mm Rnd
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Amphenol Availability : 2445
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USD 0.4963

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23AR200LFTR


BI Technologies TT Electronics Trimmer Resistors - SMD 4MM Squ 200 10% Sealed
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TT Electronics Availability : 2438
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USD 0.7575

Multiples of: 500

3352E-1-105LF


Trimmer Resistors - Through Hole 3/8"round 1Mohms 0.5watt 20%
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Bourns Availability : 2436
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USD 1.7204

Multiples of: 1

3269W-1-104LF


Trimmer Resistors - SMD 1/4" 100Kohms 10% Vertical Adjust
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Bourns Availability : 2429
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USD 2.484

Multiples of: 1

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