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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3386P-1-504TLF


500 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 1.0 Turn Top Finger Adjustment
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Bourns 58
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USD 1.0868
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3299Z-1-501LF


500 Ohms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 25.0 Turn Side Adjustment
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Bourns 58
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USD 1.4835
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82A1A-B28-A15L


Potentiometers 10K 10% 5/8" SQ 1TURN
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Bourns 58
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USD 1.5484
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3352T-1-102


Trimmer Resistors - Through Hole 3/8"RND 1KOHMS 20% 0.5WATTS
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Bourns 58
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USD 2.1375
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RJ26FW103


Bourns Trimmer Resistors - Through Hole 10K 14" 10% MultiTurn Cermet
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Bourns 58
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USD 4.8388
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3059P-1-201LF


200 Ohms 1W PC Pins Chassis Mount Trimmer Potentiometer Cermet 22.0 Turn Side Adjustment
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USD 7.425
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53C22K


2k Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Conductive Plastic 2W Solder Lug
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Honeywell 58
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USD 6.7326
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3059Y-1-101


Trimmer Resistors - Through Hole 100ohms 10% 1-1/4" PC Mount
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Bourns 58
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USD 6.9875
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Hot 3266W-1-501LF


500 Ohms 0.25W, 1/4W PC Pins Through Hole Trimmer Potentiometer Cermet 12.0 Turn Top Adjustment
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Bourns 48
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USD 1.1744
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3059Y-1-104LF


100 kOhms 1W PC Pins Chassis Mount Trimmer Potentiometer Cermet 22.0 Turn Side Adjustment
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Bourns 38
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USD 5.888
Multiples of: 1

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