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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T93YA101KT20


100 Ohms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 21.0 Turn Top Adjustment
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Vishay 1540
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AUD 2.0269
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72XR500LF


Trimmer Resistors - Through Hole 3/8" Squ 500 10%
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TT Electronics 1094
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AUD 1.4394
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RA3043F-20-10EB1-A100K


Slide Potentiometers 30mm TRVL Audio 100K PC Mount
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Alpha Taiwan 1093
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AUD 1.2257
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P110KH-1F20AR500


Potentiometers 120W 500 Ohms 20% 11mm ROTARY POT
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TT Electronics 1093
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AUD 1.3577
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67WFR50KLFTR


Trimmer Resistors - Through Hole 12W 50K Ohms 10% MULTI TURN
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TT Electronics 1092
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AUD 1.3483
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PT10LV10-251A2020-S


Trimmer Resistors - Through Hole 250ohms 10mm Rnd Top adj Steel Lead
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Amphenol 1092
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AUD 0.4981
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PT15LV18-102A2020-S


Trimmer Resistors - Through Hole 1Kohms 15mm Rnd Steel Leads
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Amphenol 1092
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AUD 0.6538
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3296Z-1-505LF


Trimmer Resistors - Through Hole 3/8" 5Mohms Sealed Horizontal Adjust
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Bourns 1092
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AUD 1.5351
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PDB181-K420K-202A2


Potentiometers PANEL CONTROL 17MM-ST-CARBON
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Bourns 1073
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AUD 1.1031
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R16148-1A-2-A220K


Potentiometer: shaft; single turn; 220kO; 63mW; ±20%; THT; 6mm
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SR Passives 937
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AUD 0.28
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