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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3362P-1-302LF


Bourns Trimmer Resistors - Through Hole 14"SQ 3KOHMS 10% 0.5WATTS
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Bourns Availability : 2368
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USD 0.4488

Multiples of: 1

PT6KV-103A2020-PM


Trimmer Resistors - Through Hole
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Amphenol Availability : 2364
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USD 0.3052

Multiples of: 1

PT10LH01252A2020S


Potentiometer: mounting; single turn, vertical; 2.5kO; 150mW; ±20%
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Amphenol Availability : 2360
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USD 0.189

Multiples of: 1

Hot 3296W-1-203LF


Trimmer Resistors - Through Hole 3/8" 20Kohms Sealed Vertical Adjust
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Bourns Availability : 2355
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USD 0.5504

Multiples of: 1

PT6KV-105A2020


Trimmer Resistors - Through Hole 1Mohms 6mm Rnd Top adj
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Amphenol Availability : 2352
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USD 0.3344

Multiples of: 1

PV37W502C01B00


Trimmer Resistors - Through Hole 5Kohms Sealed 6mm SQ 12turn
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Murata Availability : 2350
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USD 1.0439

Multiples of: 1

RV24AF-10-15F-B1M-LA


Potentiometers Linear D-Shaft 1M
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Alpha Taiwan Availability : 2337
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USD 1.0661

Multiples of: 1

PT6KV-204A2020


Trimmer Resistors - Through Hole 6mm trimmer potentiometer tht
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Amphenol Availability : 2332
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USD 0.3344

Multiples of: 1

64WR50KLF


Trimmer Resistors - Through Hole 1/4" Squ 50K 10%
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TT Electronics Availability : 2328
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USD 1.425

Multiples of: 50

P160KN2-0QC17B100K


Potentiometers 16mm 100K ohm
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TT Electronics Availability : 2327
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USD 0.8646

Multiples of: 1

MMS224


Switch Slide ON ON Side Slide 0.2A 12VDC 5000Cycles Gull Wing SMD Box
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Knitter-Switch Availability : 2318
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USD 0.8938

Multiples of: 1

3314G-1-503E


Trimmer Resistors - SMD 4mm SQ 50K
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Bourns Availability : 2309
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USD 0.8558

Multiples of: 1

PT15NV18-102A2020


Trimmer Resistors - Through Hole 1Kohms 15mm Rnd
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Amphenol Availability : 2303
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USD 0.481

Multiples of: 1

RK10J12E0A0A


ALPS Potentiometers Dual Unit 10mm,15A insertion (2mm)
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ALPS Availability : 2303
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USD 1.2315

Multiples of: 25

PT10LH01-503A2020


Trimmer Resistors - Through Hole 50Kohms 10mm Rnd Side adj
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Amphenol Availability : 2301
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USD 0.363

Multiples of: 1

3266X-1-202LF


2 kOhms 0.25W, 1/4W PC Pins Through Hole Trimmer Potentiometer Cermet 12.0 Turn Side Adjustment
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Bourns Availability : 2293
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USD 1.815

Multiples of: 1

1623893-8


Trimmer Resistors - Through Hole
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TE Connectivity Availability : 2289
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USD 0.422

Multiples of: 500

416MA202P


Res Cermet Trimmer 2K Ohm 25% 0.2W(1/5W) 1(Elec)/1(Mech)Turn (6.8 X 8.1 X 7.8mm) Pin Thru-Hole
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TE Connectivity Availability : 2289
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USD 0.422

Multiples of: 500

PTC15NV02-503A2020


Trimmer Resistors - Through Hole 15 mm - ceramic potentiometer tht
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Amphenol Availability : 2289
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USD 1.2843

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Hot 3224W-1-104E


100 kOhms 0.25W, 1/4W J Lead Surface Mount Trimmer Potentiometer Cermet 12.0 Turn Top Adjustment
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Bourns Availability : 1821
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USD 0.8031

Multiples of: 1

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