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Industry-Breakthrough Z-Based Bulk Metal® Foil Technology Offers 300-mW Rated Power with 0.01% Long-Term Stability and ±0.5 ppm/°C Nominal TCR
MALVERN, PENNSYLVANIA — December 15, 2004 — Vishay Intertechnology, Inc. (VSH: NYSE) today announced the release of the VSMP1206 high-precision, surface-mount, Bulk Metal® Z-foil resistor, the industry’s first such device to combine a high power rating of 300 mW, load life stability of 0.01%, and a low nominal TCR of ±0.5 ppm/°C in an industry-standard, surface-mount package.
Under varying ambient temperatures and current loads, the Bulk Metal Z-foil technology that Vishay pioneered offers a breakthrough level of stability, more than an order of magnitude better than competing technologies. The use of Z-foil dramatically reduces changes in resistance caused by current variation in power resistors and current-sensing resistors with low TCR and thermal resistance, allowing for much-improved measurement capabilities.
The Z-foil technology provides an inherently low and predictable ±0.5 ppm/°C TCR nominal. At its high power rating of 300 mW at 70 °C, the VSMP1206 has a uniquely low load life stability of ±0.01%, and an even lower ±0.005% load life stability at 200 mW. Conventional full wrap-around robust terminations ensure safe handling during the manufacturing process and stability during a lifetime of thermal cycles.
The VSMP1206 has a resistance range of 10 Ω to 30 kΩ and tight tolerance to ±0.01%. Tighter tolerances are available by request to Vishay’s application engineers at Foilsupport2@Vishay.com.
Because of the improved performance that results from the use of Bulk Metal Z-foil, the VSMP1206 is well-suited for precision analog applications in industrial, medical, military, and airborne end products including metering systems, head-up displays, and electron beam systems.
A voltage divider can be fashioned by using two arbitrarily selected VSMP1206 resistors with a resultant tracking specification of less than 3 ppm/°C, or even below 1 ppm/°C upon request.
The VSMP1206 is a surface-mount chip resistor measuring just 0.126 in. by 0.062 in. [3.20 mm by 1.57 mm] with a 0.025-in. [0.64-mm] height profile, maximum weight of 11 mg, and choice of lead-free or tin/lead alloy terminals. Its small size and surface-mount construction allow designers to easily upgrade existing designs.
Available in waffle-pack and tape-and-reel packaging, samples and production quantities of the VSMP1206 resistor are available now. Lead time for production quantities is approximately six weeks.
Vishay Precision Group Inc. has ceased to be a subsidiary of Vishay Intertechnology Inc. and is an independent publicly owned company.