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-E420K-503B


Potentiometers PANEL CONTROL 17MM-ST-CARBON
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Bourns 149
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AUD 1.1175
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PTL30-15O0-105B2


Bourns Slide Potentiometers 1Mohms Travel=30mm
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Bourns 149
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AUD 2.1302
Multiples of: 1

3362H-1-253


Trimmer Resistors - Through Hole 1/4"SQ 25KOHMS 10% 0.5WATTS
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Bourns 149
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AUD 3.0357
Multiples of: 25

3352T-1-502


Trimmer Resistors - Through Hole 3/8"RND 5KOHMS 20% 0.5WATTS
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Bourns 149
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AUD 3.6905
Multiples of: 10

3547S-1AA-103A


Precision Potentiometers PREC POT 10K .25% 7/8" 22MM DIA 10T WW
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Bourns 149
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AUD 30.0143
Multiples of: 1

ASM6665


Res POT 2.5K Ohm 0.5W(1/2W) 1(Elec)/1(Mech)Turn 3.18mm (12.7 X 40.08mm) Solder Lug Panel Mount
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Ohmite 149
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AUD 32.375
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590SX1N56S502SP


Potentiometers 5K Ohm 10% 12W 3.18mm
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Honeywell 149
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AUD 43.0902
Multiples of: 1

P30LL0FRR503MA


Potentiometers 3watts 50Kohms 20% 50mm Round
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Vishay 149
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AUD 55.4808
Multiples of: 1

68WR500KLF


500 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 20.0 Turn Top Adjustment
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TT Electronics 139
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AUD 1.6116
Multiples of: 1

3296Y-1-205


Trimmer Resistors - Through Hole 38" 2Mohms Sealed Vertical Adjust
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Bourns 47
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AUD 3.9635
Multiples of: 1

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