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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PTV112-3412A-A203


Potentiometers Dual Gang No Detent 12.5mm A Taper 203
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Bourns 480
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AUD 1.4924
Multiples of: 1

PTL20-10R1-203B2


Slide Potentiometers 20Kohms Travel=20mm Center Detent
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Bourns 480
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AUD 2.3269
Multiples of: 1

3352T-1-201


Trimmer Resistors - Through Hole 3/8INRND 200 OHM 20% 0.5WATTS
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Bourns 480
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AUD 2.9228
Multiples of: 100

44WR50LFT7


Trimmer Resistors - SMD 4MM Squ 50 10%
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TT Electronics 480
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AUD 4.5522
Multiples of: 250

RV142F-40-35BL-A50K


Potentiometers 35mm AUDIO 50K PC Mount
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Alpha Taiwan 479
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AUD 2.2157
Multiples of: 1

3269P-1-503GLF


Bourns Trimmer Resistors - SMD 14" 50Kohms 10% Horizontal Adjust
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Bourns 479
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AUD 3.4478
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28SSA473MKF20N


Potentiometers VARIABLE RESISTOR .4W 500V 6.35MM
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TE Connectivity 479
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AUD 7.774
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RK27112A0-S20-C0-A103


ALPS Potentiometers 27mm DUAL
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ALPS 479
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AUD 26.1762
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RV24AF-10-15F-A5K-LA


Potentiometers Audio D-Shaft 5K
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Alpha Taiwan 478
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AUD 1.3043
Multiples of: 1

P160KNP-0FC20B500


Potentiometers
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TT Electronics 468
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AUD 1.5975
Multiples of: 1

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