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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PT10LV10-103A2020


Trimmer Resistors - Through Hole 10Kohms 10mm Rnd Top adj
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Amphenol 2387
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AUD 0.5989
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R16148-1A-2-A500K


Potentiometer: shaft; single turn; 500kO; 63mW; ±20%; THT; 6mm
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SR Passives 1823
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AUD 0.3282
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PT15LV18-104A2020


Trimmer Resistors - Through Hole 100Kohms 15mm Rnd
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Amphenol 1823
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AUD 0.7612
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G32AT-B501


Potentiometer: mounting; single turn; 500Ω; 125mW; SMD; ±20%
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Tocos 1819
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AUD 0.4846
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PTC10LH01-502A2020


Trimmer Resistors - Through Hole 5Kohms 10mm Rnd
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Amphenol 1819
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AUD 1.2308
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RV120F-10-15F-B5K-0075


Potentiometers Linear D-Shaft 5K
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Alpha Taiwan 1817
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AUD 2.1476
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PT6MH-105A2020


Trimmer Resistors - Through Hole
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Amphenol 1814
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AUD 0.5248
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1-1623893-2


Trimmer Resistors - Through Hole
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TE Connectivity 1814
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AUD 0.6091
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416MA503P


Trimmer Resistors - Through Hole 416M 50K
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TE Connectivity 1814
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AUD 0.6091
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PTA4543-2015CPB103


10 kOhms 0.25W, 1/4W Through Hole Slide Potentiometer Top Adjustment Type
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Bourns 1717
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AUD 1.554
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