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Vishay Intertechnology’s New Power Metal Strip® Meter Shunt Resistor Features Very Low Resistance Values Down to 100 µΩ and 3 W Power Capability in 3124 Size Package
MALVERN, Pa. — Feb. 2, 2012 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced a new Power Metal Strip® meter shunt resistor that combines a 3 W power capability in the 3124 size package with extremely low resistance values down to 100 µΩ The WSMS3124 allows placement of an electron-beam welded shunt in electrical wattmeters. The design also incorporates a physical shape that results in very low TC characteristics (down to 75 ppm/°C).
The WSMS3124 meter shunt resistor features a proprietary processing technique that produces extremely low resistance values from 100 µΩ to 750 µΩ. These values allow for increased accuracy in current meter shunt applications for industrial and consumer single- or multiphase energy meters. With a tolerance of 5.0 %, the new resistor provides power companies with more accurate data to determine customer usage and to adjust billing terms.
The WSMS3124 features a five-terminal connection design and an all-welded construction that contributes to its superior electrical performance. The resistor offers very low inductance values of < 0.5 nH and a low thermal EMF of < 3 µV/°C. The device is lead (Pb)-free and RoHS-compliant.
Samples and production quantities of the new meter shunt resistor are available now, with a lead time of eight to 10 weeks for larger orders.
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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