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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PTT111-3217A-B503


Bourns Potentiometers PANEL CONTROL
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Bourns 1020
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AUD 1.471
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T93YA201JT20


Trimmer Resistors - Through Hole 3/8" SQ V/ADJ 200 5%
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Vishay 168
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AUD 1.9209
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3386P-1-200


Trimmer Resistors - Through Hole 3/8"SQ 20OHMS 10% 0.5WATTS
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Bourns 168
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AUD 2.4231
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PDA241-HRT02-254A2


Bourns Potentiometers 250Kohms Plain Shaft HIGH
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Bourns 168
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AUD 2.6104
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3299P-1-254LF


Trimmer Resistors - Through Hole 250Kohms Standoffs Horizontal Adjust
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Bourns 168
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AUD 3.3077
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RJR24FW504R


Trimmer Resistors - Through Hole 100ppm 500Kohms 25 TURNS NOM.
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Bourns 168
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AUD 9.1045
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3006P-7-501LF


Bourns Trimmer Resistors - Through Hole 500ohm 34" 10% Sealed Multi Turn
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Bourns 166
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AUD 2.906
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RK08H113003Q


Potentiometers 10 KOhms 30%
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ALPS 139
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AUD 2.8075
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3299W-1-501


Trimmer Resistors - Through Hole 500 OHMS Standoffs Vertical Adjust 3/8"
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Bourns 71
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AUD 3.4478
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ST-5ETW102


1 kOhms 0.25W, 1/4W Gull Wing Surface Mount Trimmer Potentiometer Cermet 14.0 Turn Top Adjustment
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Nidec Copal 47
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AUD 3.4822
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