A potentiometer is a resistor with a sliding contact between its two extremities. It acts as an adjustable voltage divider or as a variable resistor (rheostat).
Trimmer potentiometers (trimpots) are mounted on circuit boards as gain controls. Rheostats are used for starting, speed and braking control in DC motors without thyristors. Automatic models are employed as rotary or linear position transducers.
The current running through the potentiometer encounters a resistance which is a function of the nature and length of the material. This can be a carbon or ceramic and metal (cermet) element. There are both single-turn and multi-turn, rotary or linear versions.
Rheostats are wound, the wiper sliding from one turn to another. They often include a limit mechanism to prevent the current from exceeding the device's rating. Some models are motorized. Multi-position switches are sometimes referred to as variable resistance potentiometers.
Choice will depend on power, rating and configuration.
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Linear potentiometer position sensor: conductive plastic Honeywell Sensing and Control
Honeywell linear and rotary potentiometers measure linear, rotary position or displacement. Use a tried and true potentiometric technology originally developed for military applications and more recently...
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Miniature linear potentiometer position sensor 50 - 300 mm, max -40 - 70 °C TURCK
Turck expands its LI-Q17 position sensor series for measuring ranges from 50 to 300 mm A new miniature linear position sensor with a 300 mm measuring range has been added to Turck's compact LI-Q17 series position sensors. The sensors operate on the resonant circuit measuring principle, in which the position is not detected with a magnetic positioning element but inductively via...
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Cermet potentiometer Elma Electronic
Cermet potentiometers can be used as both panel-mounting elements and on the printed circuit...
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Linear potentiometer position sensor WARNER ELECTRIC
Warner Electric has many years of experience in applying sensors and...
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Digital potentiometer AD51xx, AD52xx series Analog Devices
A digital potentiometer adjusts and trims electronic circuits similar to variable resistors, rheostats and mechanical...
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Digital potentiometer TPL series Texas Instruments Semiconductor
TI's digital potentiometer (digital pot) products are a part of...
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Trimmer potentiometer Murata Electronics
Trimmer Potentiometers are used for electronic equipment...
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Contactless Hall effect potentiometer ø 28 mm, max. 4.9 V | CEH428-1 Semip
SEMIP Introduces Its' hall effect families: contactless potentiometers and absolute encoders, developed by our advanced R&D dept. Adhering to Iso's regulations, our exceptionnal and competitive solutions are the re-sponses to the last commercial, technological and...
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Control potentiometer Wichita Clutch
The Wichita Altra Sonic is a potentiometer-regulated ultra-sonic based tension control system designed to maintain stable web tension during the steady...
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Precision potentiometer 105°, IP 54 AB Elektronik
AB Elektronik Angle Sensors for Power Train and Chassis Applications Development and production of position sensors since 1990 (second product generation of Hall sensors) • Wide range of patents • Large volume production for car and truck applications • Medium and small...
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Precision potentiometer 1 - 20 kΩ API Technologies - Spectrum Sensors
Spectrum’s Rotary Precision Position Sensors offer high reliability and the longest life (l00 million cycles min.) in the industry. Our rotary sensor products feature a co-molded conductive plastic element for a hard...
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High precision potentiometer 0.5 - 10 kΩ, 1 W | 082 COUDOINT S.A.S.
Particular features of the model: • No possibility of protection ring or protection cap or multiple units • Mounting by clamps only • Flexible output wires only (waterproof bass end with ceramic insulation not feasible) • Mechanical...
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Hybrid precision potentiometer IP50 / IP 68 | SRS280 PENNY GILES CONTROLS
The SRS280 sealed rotary sensor has been specially developed to meet the harsh operating requirements of today´s automotive and motorsport markets, with a number of innovative design features incorporated to...
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Hybrid precision potentiometer max. ±0.30 %, IP65 / 67 / 68 | RT8420 SCAIME
the model RT8420 provides extended rotational position feedback from as little as 1/8 of a turn f.s. all the way up to 200 turns...
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Ideally for the application with ions selective electrodes. CITSens Ion’s Six-Channel ISE-Potentiometer is used for studying the activity of a large scale of inorganic and organic ions in solutions. The CITSens Ion Potentiometer allows to connect six electrodes...
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Electronic potentiometer T7900 series Littelfuse
The T7900 Electronic Potentiometer is typically used as an interface between a unit that provides increase/decrease contacts signals and electronic speed governors or...
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Hybrid linear potentiometer position sensor 25 – 300 mm | LZW2 WayCon Positionsmesstechnik
Linear potentiometer are well known displacement transducers. The working principle is a voltage division on a hybride conductive film. It is possible to get different housing and mounting types, like...
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Hybrid precision potentiometer IP6k9k, IP68, IP67 MOBIL ELEKTRONIK GMBH
Standard Series 530 700 potentiometric with measuring amplifier Angle transducer in rugged design for harsh applications. Technical properties: -...
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Precision potentiometer with ball bearing P2500 NOVOTECHNIK
Special features • unmatched combination of size, performance and price • very long life - 100 x 106 movements • very...
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Miniature linear potentiometer position sensor 25 - 150 mm, IP63 | PM series ELAP
Thanks to their small size – 21 mm square section case – the linear potentiometers seris PM can be profitably employed for those applications where limited dimensions are a critical factor. The series...
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Electronic potentiometer 101-026-105 Marsh Bellofram
Recommended for use with all the ATC Diversified Electronics family of remote adjustable timers....
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Motorized potentiometer IP65, 6 - 24 VDC | BS375 inelta Sensorsysteme
Type: BS375 Mounting: Frontpanel Supply...
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Cemented wire-wound potentiometer 8 - 25 W | RK series Frizlen GmbH & Co. KG
TECHNICAL DESCRIPTION Cement coated wirewound variable...
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Conductive plastic precision potentiometer 600 r.p.m, IP40 | PS series GEFRAN
PS Rotative position transducers in conductive plastic * Models 09, 11, 20...
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Linear potentiometer position sensor: conductive plastic ELCIS ENCODER
“POTENTIOMETRIC” linear transducers, with resistive element made of conductive...
