NEW LOW-VALUE POWER METAL STRIP RESISTORS PROVIDE RESISTANCE VALUES

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NEW LOW-VALUE POWER METAL STRIP RESISTORS PROVIDE RESISTANCE VALUES
27 April 2006 - Vishay Electronic

The new Vishay Dale WSL3921 and WSL5931 are ideal for all types of current-sensing, voltage division, and pulse applications including switching and linear power supplies, instruments, and power amplifiers in automotive electronic controls; battery-charging systems and motor controls in consumer products; and motor controls in industrial systems.

Vishay Intertechnology, Inc. today announced two new low-value, surface-mount Power Metal Strip resistors with power ratings of 3.0 W and 5.0 W and extremely low resistance values down to 0.2 mΩ.

The new WSL3921 resistor measures 0.394 in. by 0.205 in. [10.0 mm by 5.2 mm] with a maximum height profile of 0.071 in. [1.80 mm], and the WSL5931 resistor measures 0.591 in. by 0.305 in. [15.0 mm by 7.75 mm] with a height profile of 0.068 in. [1.73 mm]. A proprietary processing technique produces low resistance values ranging from 0.2 mΩ to 4.0 mΩ with tight tolerances of 1.0% and 5.0%.

Like all Power Metal Strip resistors, the new devices released today feature an all-welded construction that contributes to their superior electrical performance. The WSL3921 and WSL5931 provide very low inductance of 0.5 nH to 5 nH, extdent frequency response, and low thermal EMF. They also provide good overload capability, using the printed circuit board as a cooling device, and long-term stability through a broad range of environmental conditions. As a result, the WSL3921 and WSL5931 enable design of higher-performing, longer-lasting end products.

The accuracy and low resistance values of the WSL3921 and WSL5931 resistors enable designers to use less-expensive ICs and help end systems to operate at maximum performance. These new resistors also enable designers to use a single low-value resistor in place of multiple high-value resistors running in parallel.

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About: Vishay Electronic
Vishay Transducers is a division of Vishay Measurements Group. Vishay Measurements Group develops, manufactures, and markets a broad range of sensors for a wide variety of test and measurement applications. These include electrical resistance strain gages for both stress analysis testing and transducer manufacturing applications, load cells for approved weighing applications, force transducers, instrumentation, hybrid strain gage assemblies and bonding services.

Vishay, a Fortune 1,000 Company listed on the NYSE, is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, optoelectronics, and selected ICs) and passive electronic components (resistors, capacitors, inductors, and transducers). The Company'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.

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