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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PS20M-0PC1FAR250KN


Slide Potentiometers 250K ohm 20% 20mm Slide Potentiometer
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TT Electronics 129
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AUD 2.1179
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TS53YL105MR10


Trimmer Resistors - SMD 1Mohms 20% SQ POT
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Vishay 129
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AUD 2.6923
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3214X-2-503E


Trimmer Resistors - SMD 4MM SQ 50KOHMS 10% 5TURN
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Bourns 129
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AUD 3.7692
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PC16SH-10CP16-105A2020-C-TA


Potentiometers
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Amphenol 129
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AUD 6.8955
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JA1N056S503UA


Potentiometers 50K Ohm 10% 2.25W 6.35mm
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Honeywell 129
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AUD 138.8433
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3104605594


Potentiometers Wirewound-Pot
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Kyocera AVX 128
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AUD 5.8284
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RA2043F-20-10EB1-B50K


Slide Potentiometers 20mm TRVL LINEAR 50K PC Mount
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Alpha Taiwan 128
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AUD 1.2313
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3386P-1-201TLF


Trimmer Resistors - Through Hole 3/8IN 200 OHMS 10% 0.5Watts Square
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Bourns 128
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AUD 1.9866
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3339H-1-503LF


Trimmer Resistors - Through Hole 50K 5/16" Rnd 4Turn Cermet
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Bourns 116
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AUD 4.2687
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WH16BK-1-B100K


Potentiometer: shaft; 100kO; Features: with push-push switch
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SR Passives 73
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AUD 3.1134
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