About Potentiometers, Trimmers & Rheostats

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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3252W-1-203LF


Bourns Trimmer Resistors - Through Hole 20Kohms 12" Sq Sealed Wire Leads
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Bourns 58
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USD 7.935
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Hot P16NP474MAB15


Potentiometers 470Kohms 20% Linear Plastic black
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Vishay 58
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USD 8.8172
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P16NP103MAB15


10k Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Cermet 1W Solder Lug
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Vishay 58
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USD 11.3355
Multiples of: 20

P16SNP101MAB15


Vishay Sfernice Potentiometers 100ohms 20% Linear wSW HDWR INC IP67
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Vishay 58
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USD 13.7655
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P16NM103MAB15


Potentiometers 10Kohms 20% Linear Metallica black
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Vishay 58
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USD 17.3537
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380C1100


Potentiometers 100 Ohms 10% 2W Solder Lug
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Honeywell 58
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USD 22.4924
Multiples of: 100

53C22MEG


Res Conductive Plastic POT 2M Ohm 20% 2W 1(Elec)/1(Mech)Turns 6.35mm (30.17 X 27.78 X 36.12mm) Solder Lug Panel Mount Automotive
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Honeywell 58
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USD 23.2375
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RV4LAYSA205B


Potentiometers RV4 Series Industrial Potentiometer, Conductive Plastic Element, Solder lug Terminals, 2 W Power Rating, 2 M Ohms Resistance Value
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Honeywell 58
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USD 24.3994
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CLU2531E


Res POT 25K Ohm 2W 1(Elec)/1(Mech)Turn 6.35mm (31.78 X 29.4mm) Solder Lug Panel Mount
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Ohmite 56
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USD 33.7125
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536-1-1-102


Precision Potentiometers 7/8" WW 1Kohms 10 Turns
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Vishay 53
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USD 15.7205
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