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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PDB181-E415K-105A2


Bourns Potentiometers PANEL CONTROL 17MM-ST-CARBON
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Bourns 980
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AUD 1.1279
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PTV09A-4025S-A203


Potentiometers PANEL CONTROL - 9MM-ST-CARBON 20 kohms 25 mm
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Bourns 979
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AUD 0.7543
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RV16AF-20-15K-A1K-3LA


Potentiometers Audio Knurled 1K PC Mount
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Alpha Taiwan 978
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AUD 1.1698
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ST-32ETA500


50 Ohms 0.125W, 1/8W J Lead Surface Mount Trimmer Potentiometer Cermet 1.0 Turn Top Adjustment
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Nidec Copal 978
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AUD 1.3164
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PTA4553-2015DPB502


Slide Potentiometers 15MM SHAFT NO DET 45MM STRK SNG LIN
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Bourns 978
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AUD 1.7303
Multiples of: 1

363P500


Res Cermet Trimmer 500 Ohm 10% 0.5W(1/2W) 1(Elec)/1(Mech)Turn 3.81mm (9.53 X 9.53 X 4.83mm) Pin Thru-Hole
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Honeywell 978
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AUD 2.3542
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PDB181-K420K-504B


Bourns Potentiometers PANEL CONTROL 17MM-ST-CARBON
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Bourns 977
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AUD 1.1279
Multiples of: 1

67PR25KLF


BI Technologies TT Electronics Trimmer Resistors - Through Hole 38" Squ 25K 10%
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TT Electronics 977
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AUD 3
Multiples of: 1

T73XH103KT20


Vishay Sfernice Trimmer Resistors - Through Hole 14"SQ HADJ 10K
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Vishay 976
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AUD 1.3519
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PV37W202C01B00


Trimmer Resistors - Through Hole 2.0Kohms Sealed 6mm SQ 12turn
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Bourns 976
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AUD 1.3784
Multiples of: 100

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