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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CA9MH 250K


Potentiometer: mounting; single turn, vertical; 250kO; 0.15W; ±20%
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ACP 36
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AUD 0.2445
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FT-63ETS101


10% 100 Plugin Variable Resistors/Potentiometers ROHS
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Nidec Copal 36
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AUD 0.3114
Multiples of: 1

93PR-1-105


±10% 500mW 1MΩ Plugin Variable Resistors/Potentiometers ROHS
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Guosheng 36
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AUD 1.4602
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Hot 3266X-1-503LF


Trimmer Resistors - Through Hole 1/4" 50Kohms 10% SQ W/Standoff Sealed
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Bourns 36
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AUD 1.5184
Multiples of: 1

R12022NS-AM1.2C1.2-B103-000


Plugin Variable Resistors/Potentiometers ROHS
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CTR 36
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AUD 2.0325
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3224X-1-205E


Trimmer Resistors - SMD 4mm 2Mohms 10% Square Cermet Sealed
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Bourns 36
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AUD 3.1851
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3006P-1-501Z


Trimmer Resistors - Through Hole 500ohm 3/4" 10% Sealed Multi Turn
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Bourns 36
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AUD 6.4366
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JC10-000-502N


Potentiometers 324 degree electrical angle, .125 W, 5 kOhm resistance, sensing single turn conductive plastic, 2% linearity, 10mm diameter, wirewrap leads
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Nidec Copal 36
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AUD 11.5254
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3361P-1-202


10% 2k SMD,6.9x7mm Variable Resistors/Potentiometers ROHS
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Guosheng 33
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AUD 0.8432
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SM-31TW501


500 Ohms 0.125W, 1/8W J Lead Surface Mount Trimmer Potentiometer Cermet 5.0 Turn Top Adjustment
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Nidec Copal 0
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AUD 3.2926
Multiples of: 1

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