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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3214X-1-105E


1 MOhms 0.25W, 1/4W Gull Wing Surface Mount Trimmer Potentiometer Cermet 5.0 Turn Top Adjustment
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Bourns 368
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AUD 2.0687
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PT06-M-V-102(1K)


±20% 100mW 1kΩ Plugin Variable Resistors/Potentiometers ROHS
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Guosheng 194
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AUD 0.1963
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3223W-1-500


Bourns Trimmer Resistors - SMD 50 OHM 3mm 20%
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Bourns 180
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AUD 3.9423
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3224X-2-103E


Trimmer Resistors - SMD 4mm 10Kohms 10% Square Cermet Sealed
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Bourns 180
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AUD 4.5577
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3299W-1-201


Trimmer Resistors - Through Hole 200ohms Standoffs Vertical Adjust 3/8"
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Bourns 180
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AUD 4.8462
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51AAD-B24-A25L


Potentiometers 1/2" 1M 10% Square Sealed
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Bourns 180
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AUD 8.7836
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3269W-1-102


Trimmer Resistors - SMD 1/4" 1Kohms 10% Vertical Adjust
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Bourns 175
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AUD 5.3358
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3386F-1-103


Trimmer Resistors - Through Hole 3/8"SQ 10KOHMS 10% 0.5WATTS
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Bourns 169
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AUD 1.7075
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PTR902-2015F-C104


Bourns Potentiometers PANEL CONTROL
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Bourns 159
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AUD 3.2672
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Hot 3224W-1-205E


2 MOhms 0.25W, 1/4W J Lead Surface Mount Trimmer Potentiometer Cermet 12.0 Turn Top Adjustment
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Bourns 111
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AUD 1.5656
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