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Vishay Releases New Technical Guides on Bulk Metal® Foil Resistors for Current Sensing and Medical Applications

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(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

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



Press release date: March 22, 2006

MALVERN, PENNSYLVANIA - March 22, 2006 - Vishay Intertechnology, Inc. (NYSE: VSH) today released two new brochures on its Bulk MetalŪ foil resistors. Ultra-High-Precision Current Sensing Bulk Metal Foil Resistors and Ultra-High-Precision Bulk Metal Foil Resistors for Advanced Medical Applications, Treatment Solutions, and Biotechnology describe the challenges inherent in current sensing and in medical and biotechnology applications, and explain how Vishays proprietary foil resistor technology provides a variety of solutions.

Invented by Dr. Felix Zandman in 1962, Bulk Metal foil resistors were the first products manufactured and marketed by Vishay. As Vishay has grown to become one of the worlds largest manufacturers of discrete semiconductors and passive electronic components, Dr. Zandman, who founded Vishay and now serves as Chairman of the Board, Chief Technical Officer, and Chief Business Development Officer, has spearheaded ongoing improvements to the original Bulk Metal foil resistor product line. One recent improvement, Z Foil, provides an absolute temperature coefficient of resistance (TCR) of only 0.2 ppm/°C.

The importance of TCR is discussed in great detail in Ultra-High-Precision Current Sensing Bulk Metal Foil Resistors. As the key parameter used to specify a resistors stability, TCR expresses the change in resistance due to a change in the ambient temperature. Current sensing resistor applications are further complicated by changes in resistance due to self-heating (Joule effect) during application of power. The brochure covers these and other issues in great detail, and discusses how Bulk Metal foil resistors can be used to overcome them. The Ultra-High-Precision Current Sensing Bulk Metal Foil Resistors brochure is available on the Vishay Web site at http://www.vishay.com/doc?49460.

Ultra-High-Precision Bulk Metal Foil Resistors for Advanced Medical Applications, Treatment Solutions, and Biotechnology explains why Bulk Metal foil resistors are the preferred resistors for medical applications including non-invasive equipment, imaging equipment and systems, and biological implants. The brochure lists the features of benefits of both surface-mount and through-hole foil Vishay resistors. The surface-mount foil resistors include wraparound, flip chip, molded, and power current sensing types, as well as hermetic networks and voltage dividers and networks. The through-hole foil resistors include molded; molded and hermetic power current sensing; molded and hermetic voltage dividers; hermetic sealed networks; and hermetic ultra-precision modules with almost zero TCR.

Real-world examples of foil resistors in cardiac mapping systems, tomography applications, and miniature sensors are also presented.

The Ultra-High-Precision Bulk Metal Foil Resistors for Advanced Medical Applications, Treatment Solutions, and Biotechnology brochure is available on the Vishay Web site at http://www.vishay.com/doc?49466.

To obtain printed copies of either brochure, please contact the appropriate Vishay literature distribution center listed below. Include order number VMN-PL0015-0511 with your request for Ultra-High-Precision Current Sensing Bulk Metal Foil Resistors and order number VSA-PL0032-0510 with your request for Ultra-High-Precision Bulk Metal Foil Resistors for Advanced Medical Applications, Treatment Solutions, and Biotechnology.

The Americas Fax: +1 (402) 563-6569 
literature.americas@vishay.com

Europe and Israel Fax: +49 71 31 67 2423 literature.europe@vishay.com

Asia Fax: +49 71 31 67 2423 literature.asia@vishay.com More information on Vishay Bulk Metal foil resistors is on the Vishay Web site at http://vishay.com/resistors-discrete/ultra-high-precision (for discrete resistors) and at http://www.vishay.com/resistor-networks/metal-foil (for resistor networks).

For technical support, please contact Foil@Vishay.com.

About Vishay Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, and optoelectronics) and selected ICs, and passive electronic components (resistors, capacitors, inductors, and transducers). Vishay's components can be found in products manufactured in a very broad range of industries worldwide. Vishay is headquartered in Malvern, Pennsylvania, and has operations in 17 countries employing over 26,000 people. Vishay can be found on the Internet at http://www.vishay.com.

Editorial Contact: Bob Decker Wall Street Communications Tel: +1 (415) 409-0233 Fax: +1 (650) 618-1512 bob.decker@wallstcom.com

Worldwide Reader Contact: Vishay Intertechnology, Inc. info@vishay.com www.vishay.com Samples: +1 (619) 336-0860
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