NEW VISHAY FLAT CHIP RESISTOR ARRAYS

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NEW VISHAY FLAT CHIP RESISTOR ARRAYS
18 February 2005 - Vishay Electronic

Vishay Intertechnology, Inc. today announced that it has introduced two new series of flat chip resistor arrays that integrate four thin film resistors into a single 0612 surface-mount package. The Vishay Beyschlag ACAC 0612 precision series and ACAC 0612 professional series resistor arrays are ideal for applications that demand high component densities and accurate and stable resistor performance.

The ACAC 0612 precision series resistor arrays feature absolute TCR of ±25 ppm/°K and tracking TCR of ±15 ppm/°K, with tracking TCR of ±10 ppm/°K available upon request. The ACAC 0612 professional series resistor arrays feature absolute TCR of ±50 ppm/°K, with ±25 ppm/°K available upon request. The ACAC 0612 precision series arrays have absolute tolerance of ±0.25% and matched tolerance of 0.1%, while the ACAC 0612 professional series arrays have absolute tolerance of ±1%.

The resistor arrays have a footprint of 1.6 mm x 3.2 mm, a reduction of approximately 40% when compared to the use of four discrete 0603 resistors. Resistance options range from 100 Ω to 221 kΩ, and arrays are available with four equal values, four different values, or two equal value pairs. Maximum power dissipation for the new arrays is 0.3 W, with individual resistors rated at a maximum of 0.1 W.

For arrays featuring differing individual resistance values the Rmin/Rmax ratio is 1:10 for the professional series arrays and 1:5 for the precision series arrays. Close tolerance matching of 0.1 % in the case of the precision series arrays ensures highly reliable and stable fixed resistor ratios.

The ACAC 0612 resistor arrays are suitable for use in voltage dividers, feedback circuits, and signal conditioning functions. Target applications include automotive engine control units, climate control, transmission controls and driver safety systems, mobile telecom base stations, medical instruments, precision measuring equipment, and high-end audio amplifiers. The arrays can also be used in sensing and management systems for PSUs and battery chargers.

The ACAC 0612 resistor arrays are lead (Pb)-free, and the pure tin plating provides compatibility with lead (Pb)-free and lead (Pb)-containing soldering processes. Extensive testing has proven the immunity of the plating against tin whisker growth, and the resistor arrays comply with the CEFIC-EECA-EICTA list of legal restrictions on hazardous substances.

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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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