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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3299W-1-502


Trimmer Resistors - Through Hole 5Kohms Standoffs Vertical Adjust 3/8"
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Bourns 719
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AUD 3.9635
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450T328F502A1A1


Potentiometers 5000 Ohm +/-10% 24mm Dia. Flatten
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CTS 719
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AUD 4.3648
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ST4ETA101


100 Ohms 0.25W, 1/4W J Lead Surface Mount Trimmer Potentiometer Cermet 1.0 Turn Top Adjustment
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Nidec Copal 718
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AUD 1.2961
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PTA3043-2010CIB102


Bourns Slide Potentiometers 10mm Shaft 1K Ohms Sgl Gang Ins Lev Lin
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Bourns 718
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AUD 1.561
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RK14K12D0A5V


Potentiometers Vertical type / Dual-unit (for Vol.) / 10k ohm, 15A / LM1=22.5mm / With Bushing
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ALPS 717
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AUD 1.1205
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3223J-1-503E


Trimmer Resistors - SMD 3MM SQ MT CERMET TRIMMER
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Bourns 717
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AUD 3.8762
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PDB241-GTR01-504A2


Potentiometers 0.25watt 500Kohms 20% Knurled
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Bourns 717
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AUD 4.0333
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P140KV1-F25BR10K


Res Conductive Plastic POT 10K Ohm 20% 0.05W(1/20W) 1(Elec)/1(Mech)Turn 6mm (35 X 20.1mm) Pin Panel Mount/Bracket Mount
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TT Electronics 715
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AUD 1.2065
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3361P-1-101G


Res Cermet Trimmer 100 Ohm 10% 0.5W(1/2W) 1(Elec)/1(Mech)Turns 2.77mm (6.71 X 8.53 X 5.21mm) Gull Wing SMD T/R
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Bourns 715
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AUD 1.3289
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PV36W202C01B00


Trimmer Resistors - Through Hole 2.0Kohms 10mm Square 25turn
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Murata 715
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AUD 1.3636
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