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Braking/Crowbar Resistors have compact and modular design.

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Braking/Crowbar Resistors have compact and modular design.
Braking/Crowbar Resistors have compact and modular design.

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December 12, 2013 - To meet demands of alternative energy and other heavy-duty applications, Vishay Draloric ULDCR stainless steel braking/crowbar resistors feature pulse energy capability up to 3.46 MJ and pulse current capability up to 12 kA. Higher pulse load capacity versions, built to specifications, are available. For single pulse, devices feature temperature rise below 350C typ. Resistance ranges from 1 mΩ to several ohms, and self-supported design features saltwater-resistant component materials.
Original Press Release

Vishay
63 Lincoln Hwy., P.O. Box 4004
Malvern, PA, 19355
USA



Vishay Intertechnology Launches Stainless Steel Braking/Crowbar Resistors for Alternative Energy Applications


Devices Feature Industry-High Pulse Energy Capability to 3.46 MJ and Pulse Current Capability to 12 kA

MALVERN, Pa. — Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new series of stainless steel braking/crowbar resistors featuring industry-high pulse energy capability up to 3.46 MJ and pulse current capability up to 12 kA for alternative energy and other heavy-duty applications. Higher pulse load capacity versions built to customer specifications are also available.

The Vishay Draloric resistors released today are optimized as crowbar resistors for frequency converters for three-phase generators in wind power plants and pumped-storage hydro power stations. In addition, they serve as brake and chopper resistors for railways, elevators, and industrial systems. The ULDCR resistors feature a patented self-supported, extremely robust, and compact modular design that is easily assembled into all of these applications. The resistors' component materials are also resistant to salt water.

For a single pulse, the devices feature a typical temperature rise below 350 C. Offering high operating temperatures up to 375 C, the ULDCR series provides resistance values from 1 mΩ to several ohms, with available tolerances of 5 % and 10 % and a maximum expected change of resistance in service of less than 20 %.

Manufactured without any organic compounds, the devices are RoHS-compliant and conform to Vishay "Green" standards.

Samples and production quantities of the ULDCR resistors are available now, with lead times to 14 weeks for larger orders at competitive prices.

Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay's product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com.

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