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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3299W-1-205


Trimmer Resistors - Through Hole 2Mohms Standoffs Vertical Adjust 38"
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Bourns 21
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AUD 3.8286
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3269P-1-103


Trimmer Resistors - SMD 1/4" 10Kohms 10% Horizontal Adjust
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Bourns 21
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AUD 5.7649
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POT2218P2-5K


Potentiometer: shaft; 5kO; 2W; ±5%; 6.35mm; linear; wirewound
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SR Passives 21
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AUD 8.4627
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3104602802


Potentiometer: shaft; single turn; 25O; 4W; ±10%; 6mm; wirewound
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TT Electronics 21
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AUD 14.2716
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485000071390006


Potentiometers RESISTIVE & OPTICAL
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Honeywell 21
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AUD 14.944
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3252W-1-502


5 kOhms 0.75W, 3/4W PC Pins Chassis Mount Trimmer Potentiometer Cermet 25.0 Turn Top Adjustment
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Bourns 21
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AUD 16.8284
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PRV6SAABGYB25102KA


Potentiometers 1/2" POT S/L 1K
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Vishay 21
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AUD 17.5962
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14910FAGJSX10104KA


Potentiometers 1/2"SQ 1/4"S 100Kohm 7/8" Shaft Length
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Vishay 21
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AUD 18.7493
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3292W-1-104


Trimmer Resistors - Through Hole 3/8" 100Kohms Sealed 10% Vertical Mount
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Bourns 21
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AUD 18.9791
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3059P-1-504


Trimmer Resistors - Through Hole 500Kohms 10% 1-1/4" PC Mount
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Bourns 19
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AUD 9.2269
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