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News

Industry-breakthrough Z-based Bulk Metal Foil technology

Vishay Electronic : 05 May, 2006  (New Product)
Vishay Intertechnology, Inc. 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
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.
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