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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SM-42TX502


5 kOhms 0.25W, 1/4W Gull Wing Surface Mount Trimmer Potentiometer Cermet 11.0 Turn Top Adjustment
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Nidec Copal 438
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AUD 3.135
Multiples of: 1

PDA241-HRT00-504B0


Potentiometers 500Kohms 18 teeth Knurled Shaft HIGH
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Bourns 438
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AUD 3.4615
Multiples of: 1

3386H-1-500LF


50 Ohms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 1.0 Turn Side Adjustment
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Bourns 437
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AUD 1.1663
Multiples of: 1

RV121SF-30-009J-B1M-00K


Potentiometers 12mm molded cased rotary potentiometer with rotary switch (SPST) , vertical PCB Mounting type, Linear 1M ohms
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Alpha Taiwan 437
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AUD 2.9857
Multiples of: 1

RKT6V-100


Potentiometer: mounting; single turn, horizontal; 100O; 100mW
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SR Passives 436
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AUD 0.1102
Multiples of: 10

3361P-1-105


±10% 1MΩ SMD,6.9x7mm Variable Resistors/Potentiometers ROHS
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Guosheng 436
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AUD 0.5248
Multiples of: 1

23BR1MEGTR


Trimmer Resistors - SMD TRIMMER-ASSY
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TT Electronics 436
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AUD 0.5635
Multiples of: 1

PDB181-K220K-503B


Res Carbon Film POT 50K Ohm 20% 0.2W(1/5W) 1(Elec)/1(Mech)Turns 6mm (29.5 X 17 X 21mm) Pin Panel Mount/Through Hole Automotive
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Bourns 436
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AUD 1.0417
Multiples of: 50

3299W-1-200LF


Trimmer Resistors - Through Hole 20ohms Standoffs Vertical Adjust 3/8"
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Bourns 436
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AUD 2.8968
Multiples of: 100

3352T-1-502LF


Trimmer Resistors - Through Hole 3/8"round 5Kohms 0.5watt 20%
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Bourns 412
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AUD 2.5492
Multiples of: 1

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