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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3362U-1-504LF


500 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 1.0 Turn Top Adjustment
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Bourns 727
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AUD 1.1721
Multiples of: 250

3362P-1-102RLF


Trimmer Resistors - Through Hole 1/4" SQ TRIMPOT 1K ST CERMET
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Bourns 727
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AUD 1.1885
Multiples of: 750

3362U-1-502


Trimmer Resistors - Through Hole 1/4"SQ 5KOHMS 10% 0.5WATTS
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Bourns 727
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AUD 1.2758
Multiples of: 200

3361P-1-500G


Trimmer Resistors - SMD 1/4" SQ 50ohm 10% 0.5WATTS
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Bourns 727
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AUD 1.6846
Multiples of: 1

62MR200KLF


Trimmer Resistors - Through Hole 1/2W 200K Ohms 10% SINGLE TURN
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TT Electronics 727
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AUD 2.1107
Multiples of: 1

1801WSMD-20K


Potentiometer: mounting; vertical, multiturn; 20kO; 250mW; SMD
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SR Passives 727
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AUD 2.2167
Multiples of: 1

3312J-1-501E


Trimmer Resistors - SMD 500ohm 2mm Single Turn Sealed
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Bourns 727
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AUD 2.2222
Multiples of: 250

72XR200LF


Trimmer Resistors - Through Hole 3/8" Squ 200 10%
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TT Electronics 727
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AUD 2.2817
Multiples of: 25

PTL60-15R1-103B2


Slide Potentiometers 10Kohms Travel=60mm Center Detent
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Bourns 727
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AUD 2.4802
Multiples of: 1

Hot 3224W-1-100E


10 Ohms 0.25W, 1/4W J Lead Surface Mount Trimmer Potentiometer Cermet 12.0 Turn Top Adjustment
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Bourns 240
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AUD 1.5675
Multiples of: 1

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