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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RA20LASD103A


Potentiometers RA20 Series Industrial Potentiometer, Wire Wound Element, Solder lug Terminals, 2 W Power Rating, 10 K Ohms Resistance Value
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Honeywell 19
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AUD 38.0224
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3057P-1-502


Bourns Trimmer Resistors - Through Hole 5Kohms 5% 1 14" PC Mount
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Bourns 19
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AUD 39.6
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3048L-5-102


Slide Potentiometers 31.75mm 1Kohms Travel 0.5 inch
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Bourns 19
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AUD 46.0522
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3260W-1-203


Trimmer Resistors - Through Hole 1/4" 20Kohms 5% SQ Wirewound Sealed
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Bourns 19
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AUD 46.2164
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RV6LAYSA502A


Potentiometers 5K ohm 10% 12.95mm
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ETI Systems 19
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AUD 48.7776
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3057Y-1-203M


TRIMMER-1 1/4 RECT MT WW
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Bourns 19
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AUD 53.8125
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53C21.5MEG


Potentiometers 53 Series Industrial Potentiometer, Conductive Plastic Element, Solder lug Terminals, 2 W Power Rating, 1.5 M Ohms Resistance Value
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Honeywell 19
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AUD 55.9515
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RT24C2X202


Trimmer Resistors - Through Hole 2K 3/8" 5% MultiTurn Sealed
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Bourns 19
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AUD 59.403
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PE30LBFG204MAB


Potentiometers 200Kohms 20%
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Vishay 19
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AUD 59.7231
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536-1-1-202


Precision Potentiometers 7/8" WW 2Kohms 10 Turns
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Vishay 17
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AUD 38.6313
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