ON Semiconductor, LLC
Phoenix, AZ 85008
Oct 20, 2009 Featuring 256 resistor taps and I2C interface, dual-channel Models CAT5270 and CAT5271 are suited for variable resistance adjustment applications. DPP(TM) ICs offer volatile wiper register for applications using MCU with on-chip memory for wiper recall, or for systems that do not require memory. Available with end-to-end resistance options of 50 and 100 kW, CAT5270 allows microprocessor control of up to 16 devices from single bus, while CAT5271 offers single, fixed address.

Intersil Corporation
Milpitas, CA 95035
Sep 02, 2009 Housed in 3 x 3 mm TDFN package, ISL22317 Digitally Controlled Potentiometer can track external resistor within 10 ppm/°C, optimizing overall system accuracy for temperatures up to 125°C. Device employs I2C interface to program resistor settings more than 1 million times in integrated EEPROM memory. Operating on single 2.7-5.5 V supply, DCP includes zero-compensated wiper resistance, 128-tap positions, and total resistance options of 10, 50, and 100 kW.

Celesco Transducer Products, Inc.
Chatsworth, CA 91311
Sep 01, 2009 Supplied in 8 x 4 x 4.75 in. polycarbonate IP67-rated enclosure, SR1E is designed for construction equipment and factory use in wet environments and outdoor applications. Incremental encoder delivers linear resolution of 101 pulses/in. while providing full stroke linear measurement range up to 125 in., and push-pull encoder driver can be powered by 5-30 Vdc. Characteristics include 80 ips max velocity, ±1% FSO accuracy, and ±0.5% FSO repeatability.

Vishay Intertechnology, Inc.
Malvern, PA 19355 2143
Aug 26, 2009 Providing unidirectional, infinite resolution, Accutrim(TM) 1285G/1280G are ¾ in. rectilinear devices with multi-fingered, noble metal wiper engaging planar surface of etched Foil. Typ setting stability is 0.1%, resistance range is 10 W to 20 kW, and resistance tolerance is ±5% (1285G) or ±10% (1280G). Devices offer end-to-end TCR of ±5 ppm/°C (1285G) and ±15 ppm/°C (1280G) from -55 to +125°C, +25°C ref, and ±25 ppm/°C through wiper. Settability is rated at less than 0.05% typ.

Vishay Intertechnology, Inc.
Malvern, PA 19355 2143
Aug 26, 2009 Approved ¼ in.² RJ26-style 1240 series and 3/8 in.² RJ24-style 1260 series offer end-to-end TCR of ±10 ppm/°C from -55 to +150°C, +25°C ref, and ±25 ppm/°C through wiper; load life stability of 0.1% typ under full power at +85°C for 10,000 hr; and less than 0.05% typ settability. Both Accutrim(TM) series, which feature Bulk Metal® Foil resistive element, meet/exceed MIL-PRF-39035 Char H requirements and employ multi-fingered, noble metal wiper engaging planar surface of etched Foil.

Vishay Intertechnology, Inc.
Malvern, PA 19355 2143
Aug 24, 2009 Meeting/exceeding MIL-PRF-22097 Char F requirements, 1242 QPL series Accutrim(TM) trimming potentiometers are QPL-approved ¼ in. square RJ26-style devices with multi-fingered wiper traversing flat element. Essentially non-inductive devices, along with rise times down to 1 ns and 25 kV ESD, offer end-to-end TCR of ±10 ppm/°C from -55 to +150°C, +25°C ref, and ±25 ppm/°C through wiper; load life stability of 0.1% typ under full power at +85°C for 1,000 hr; and less than 0.05% typ settability.

Vishay Intertechnology, Inc.
Malvern, PA 19355 2143
Aug 13, 2009 Designed to meet and exceed requirements of MIL-PRF-22097, Char. F, Bulk Metal® Foil Accutrim(TM) 1202 Potentiometers have multi-fingered, noble metal wiper traversing planar surface of etched foil. Units feature end-to-end TCR of ±10 ppm/°C and ±25 ppm/°C through wiper, load life stability of 0.1%, and less than 0.05% settability. Offering infinite resolution, potentiometer features resistance range from 2 W to 20 kW and resistance tolerance from ±5%.

ON Semiconductor, LLC
Phoenix, AZ 85008
Jul 06, 2009 Single-channel, digitally programmable linear taper potentiometers CAT5171 and CAT5172 feature 256-position resolution and are available with end-to-end resistance options of 50 kW and 100 W. They are insensitive to mechanical vibrations, shock, oxidation, and dust and offer temperature coefficient of 100 ppm/°C. Rated for full industrial temperature range of -40 to 85°C, devices operate with single supply voltage of 2.7-5.5 V with operating current of 2 µA.

Hoffmann + Krippner Inc
Peachtree City, GA 30269
Jun 03, 2009 Protected by flexible metal bond, Sensofoil Hybrid® Membrane Potentiometers avoid dents during long periods of inactivity. Units can be integrated into membrane keyboards or front panels of devices, and actuation can be performed by person or grip. Potentiometers are suited for automotive, medical, and aviation industries, including convertible hood or electrical seat adjustment, life-saving systems, and to determine position of movable aircraft seats.

ON Semiconductor, LLC
Phoenix, AZ 85008
May 20, 2009 Featuring on-chip, 8-bit, non-volatile EEPROM memory, 256-tap, single-channel linear-taper device CAT5140 can store 2,000,000 data writes, and retain it for 100 yr. It has standby current of 2 µA (max), as well as 400 kHz, I2C-compatible interface for LCD screen adjustment; automated calibration; contrast, brightness, and volume control; and gain adjustment and line impedance matching applications. Packaged in Pb-free, RoHS-compliant 8-lead MSOP, product requires 2.5-5.5 V of power supply.

Microchip Technology, Inc.
Chandler, AZ 85224 6199
May 08, 2009 Available in 5- and 6-pin SC-70 packages, 7-bit MCP401X Series features static current consumption of 2.5 µA, and can be controlled digitally through I2C interface, eliminating need for human interaction. Specified over temperature range of -40 to 125°C, potentiometers are suited for power supply trim and calibration, set-point and process control, closed-loop servo control, portable instrumentation, and signal conditioning applications.

Vishay Intertechnology, Inc.
Malvern, PA 19355 2143
Feb 03, 2009 Measuring 12.5 mm in size, P11P and P11D come with cermet and conductive plastic elements, and feature up to 7 modules, 2 shaft lengths, and 29 terminal styles. Offered in shaft and panel-sealed versions, units provide up to 21 indent positions along with rotary switch options. Models have operating torque from 0.3-1.4 oz/in., and end stop torque of 6.8 lb/in. They offer resistance range from 20 W to 10 MW with typical contact resistance variation down to 1 %, and TCR down to ±150 ppm/°C.

BI Technologies Corp.
Fullerton, CA 92835-1051
Jan 29, 2009 Panel potentiometers for professional audio market are available in sizes ranging from 9 mm to just over one inch. Standard product offering includes multiple gangs, center taps, A, B, and C tapers, and variety of bushing sizes. Rotational consistency and use of conductive plastic inks promote stability and reliability. Available with plastic or metal shafts, they feature power ratings from 0.03-2 W and life cycle range from 30,000 to 2 million rotations.

Spectrum Sensors & Controls, Inc.,
Grass Valley, CA 95945
Dec 12, 2008 Featuring co-molded conductive plastic element for hard and smooth surface, rotary arc element segments offer infinite resolution and are available with several linear and non-linear tapers, taps, as well as electrical angles of 340° and 350°. Features include output smoothness of 0.1% max, thermoplastic insulator, and rotational life of 50 million cycles minimum. Resistance range is 1,000-20,000 X ± 10%, and OD range is 0.702-1.805 in.

Spectrum Sensors & Controls, Inc.,
Grass Valley, CA 95945
Oct 09, 2008 Featuring 45 in. side-located 24 AWG lead wires, flange mount potentiometer has electrical angle of 50° ±2°, independent linearity of ±0.25%, bow-tie tolerance, and output smoothness of 0.1% max. Motorized unit is packaged in electro-less nickel-plated, thermoplastic housing with milled slot and passivated stainless steel shaft. Rotational life is 50 million cycles minimum.

Vishay Intertechnology, Inc.
Malvern, PA 19355 2143
Jul 30, 2008 Supplied in fully sealed IP67 package with pure Sn terminals, Sfernice P10L features low temperature coefficient down to ±150 ppm/°C, cermet element for stability, and 1,000 VRMS dielectric strength. This 9.6 mm solution, constructed with plastic shaft and bushing, has max operating torque of 2.83 oz/in. and end stop torque of 9.9 oz/in. Four resistance values are available from 1-50 kW, with 1% typical contact resistance variation. Operating range is -40 to +100°C.

Electro-Mech Components, Inc.
South El Monte, CA 91733 3689
Jul 29, 2008 Compact SW44585 offers rotary and push-on momentary functionality for maximum operation control. SPST switch lets user specify value so that, at the push of a button, circuit or channel automatically opens at preset level. Featuring optional edge-lit knob assembly and snap-feel momentary switch actuation, solution takes up less than 1.00 in. behind panel. Unit weighs less than 1 oz and mounts Vishay/Sfernice potentiometer module with custom PCB tactile switch.

Catalyst Semiconductor
Sunnyvale, CA 94089
Jul 11, 2008 Housed in 8-lead SOT-23 package, CAT5128 digital potentiometer family comes in 10, 50, and 100 kW versions. Single-pot position linear taper device operates from 2.7-5.5 V, and is suited for range of control/calibration applications, such as digital volume control and LCD screen contrast and brightness adjustment in portable, consumer, and industrial electronic products as well as automated, tamper-proof product calibration, and remote control adjustment applications.

Bourns, Inc.
Riverside, CA 92507 2129
Jun 20, 2008 Available in 10, 20, and 50 ohm resistance values, Model 3312 is designed for applications requiring small resistance corrections. This 2 mm, sealed, single-turn trimming potentiometer (trimmer) is built to withstand standard water wash processes and can be used in space-constrained applications. Standard resistance range is 10 W to 2 MW, with standard tolerance of ±20%.

austriamicrosystems AG
Premstatten   Austria
Mar 18, 2008 Model AS1507 is 256-tap SPI-interfaced non-volatile dual digital potentiometer available with 10, 50, and 100 kW resistance. It uses maximum of 500 nA during standby and 200 µA maximum during operation including CMOS write current. Operating from single supply from 2.7-5.5 V, unit offers end-to end resistance temperature coefficient of 90 ppm/°C. Wiper information is stored in Hi-EPR EEPROM that allows 10 million write cycles at 25°C and 1 million write cycles at 85°C.