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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3269W-1-202GLF


Trimmer Resistors - SMD 1/4" 2Kohms 10% Vertical Adjust
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Bourns 762
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AUD 3.4478
Multiples of: 1

PTV09A-4020F-A504


Res Carbon Film POT 500K Ohm 20% 0.05W(1/20W) 1(Elec)/1(Mech)Turns 6mm (11.4 X 12.5 X 23.8mm) Pin Bracket Mount/Through Hole
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Bourns 325
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AUD 0.7075
Multiples of: 100

RV141F-40-20BL-B20K


Potentiometers 20mm LINEAR 20K PC Mount
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Alpha Taiwan 325
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AUD 1.9209
Multiples of: 1

PTR901-1025K-B503


Potentiometers 25mm 50K LINEAR KNURLD
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Bourns 325
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AUD 3.0701
Multiples of: 1

RJR26FW503R


Trimmer Resistors - Through Hole 100ppm 50Kohms 12 TURNS NOM.
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Bourns 325
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AUD 10.9836
Multiples of: 1

PDB181-GTR02-254A2


Potentiometers PANEL CONTROL 18MM-ST-CARBON
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Bourns 315
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AUD 1.8716
Multiples of: 1

3299Y-1-203LF


Trimmer Resistors - Through Hole 20Kohms Standoffs Vertical Adjust 3/8"
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Bourns 301
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AUD 2.2657
Multiples of: 1

91A1A-B28-A15L


10k Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Cermet 2W PC Pins
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Bourns 276
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AUD 7.0269
Multiples of: 1

157-21103


Precision Potentiometers 7/8"RD 10KOHMS Servo Mount
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Vishay 254
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AUD 71.0567
Multiples of: 1

ST-32ETA203


TRIMMER POT, CERMET, 20K, 1TURN, SMD; Track Resistance:20kohm; No. of Turns:1Turns; Potentiometer Mounting:Surface Mount Device; Product Range:ST-32 Series; Power Rating:125mW; Resistance Tolerance:± 20%; Temperature Coefficient:± 100ppm/C; Automotive Qualification Standard:-; MSL:-; SVHC:No SVHC (15-Jan-2018)
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Nidec Copal 86
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AUD 1.1894
Multiples of: 1

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