NEW VISHAY POWER METAL STRIP RESISTORS OFFER POWER RATINGS OF UP TO 2 W IN SMALL PACKAGE SIZES
09 August 2002 - Vishay Electronic

The industry's first Power Metal Strip resistor with a high power rating in the 0805, 1206, 2010, and 2512 package sizes has been announced by Vishay Intertechnology, Inc.

With double the power capacity of standard WSL-type resistor series, the latest addition to the Vishay WSL series is a small, surface-mount resistor intended for high-power current-sensing applications in dc-to-dc converters, power management systems, and VRMs in computer and telecommunications systems. In automotive systems, the resistor will be used for electronic controls including audio electronics, engine and climate controls, and anti-lock brakes.

Specially selected and stabilized materials permit power ratings of up to 2 W in the WSLxxxx-18 resistor. With its offering of small case sizes, the new resistor offers a high power-to-package-size ratio while maintaining the superior electrical characteristics of the Power Metal Strip construction. Smaller resistors - such as the WSLxxxx-18 - that feature the same high power ratings of larger devices enable OEMs to use smaller PCBs, which in turn increases manufacturing speed and reduces raw material costs. This new component also allows designers of electronic systems to meet market demands for more compact, higher-performing end products.

Vishay's proprietary processing technique produces extremely low resistance values in the WSL series. The WSL0805-18, WSL1206-18, WSL2010-18, and WSL2512-18 are available with resistance value ranges of 10 mΩ to 200 mΩ, 2 mΩ to 200 mΩ, 1 mΩ to 500 mΩ, and 1 mΩ to 10 mΩ, respectively, with a standard tolerance of ±1.0%. A standard tolerance of ±0.5% is available in reduced resistance ranges.

http://www.vishay.com

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