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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PDA17-SS20-103BK


Potentiometers 10K 20% 17mm Linear
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Bourns 455
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AUD 1.2083
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3214W-2-203E


Trimmer Resistors - SMD 4MM SQ 20KOHMS 10% 5TURN
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Bourns 455
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AUD 3.0646
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3352W-1-501


Trimmer Resistors - Through Hole 3/8INRND 500 OHM 20% 0.5WATTS
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Bourns 455
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AUD 3.0656
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SM-3TW501


500 Ohms 0.125W, 1/8W J Lead Surface Mount Trimmer Potentiometer Cermet 11.0 Turn Top Adjustment
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Nidec Copal 455
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AUD 3.1716
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026TB32R251B1A1


250 Ohm 1 Gang Linear Panel Mount Potentiometer None 1.0 Kierros Wirewound 5W Solder Lug
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CTS 455
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AUD 4.6032
Multiples of: 5

PC16DH07CP06504A2020TA


Potentiometers 500Kohms blk Sq 6pin
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Amphenol 455
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AUD 5.8077
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66WR2KLF


Trimmer Resistors - Through Hole 9.53MM 3/8" 25-TURN SEALED
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TT Electronics 454
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AUD 2.9857
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RS30112AJA02


Slide Potentiometers 10 KOhms 20% THT W/ SNAP-IN MNT
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ALPS 454
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AUD 3.2115
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ST5ETW103


Res Cermet Trimmer 10K Ohm 10% 1/4W 11(Elec)/14(Mech)Turn 1.6mm (6 X 6.3 X 7.75mm) Gull Wing SMD T/R
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Nidec Copal 454
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AUD 3.2119
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3223W-1-105E


Trimmer Resistors - SMD 1M OHM 3mm 20%
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Bourns 454
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AUD 3.3873
Multiples of: 1

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