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Vishay's New PR Series High-Precision Thin Film Resistor Arrays Offer Ultra-Low 0.01% Ratio Tolerance in Low-Profile, 0.4 mm-High Packages
MALVERN, PENNSYLVANIA — July 16, 2004 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced the release of the PR series high-precision thin film resistor arrays in compact 1206, 0805, and 0603 case sizes with a low profile of just 0.4 mm. Vishay is the only manufacturer to offer 0.01% ratio tolerance as a standard product feature in such low-profile arrays.
Matched resistor networks in the PR series include from two to eight resistors and are precision-matched to 0.01% ratio tolerance - as opposed to a ratio tolerance of 0.05% in competing devices. The new resistor arrays serve as compact replacements for larger-package devices - those utilizing wirewound or hermetic packaging - in instrumentation amplifiers, precision voltage dividers, bridge network circuitry, and all other products requiring a matched pair or set of resistor elements.
The new devices feature a highly stable TAMELOX® (passivated nichrome) resistive layer. PR series resistor arrays are specified for anabsolute TCR (temperature coefficient ratio) of 10 ppm/°C and TCR tracking of 2 ppm/°C - or down to 1 ppm/°C on request. Very low noise of less than -30 dB and voltage coefficients of less than 0.1 ppm/V contribute to the excellent performance of these devices.
The Vishay Thin Film PR100 is packaged in a 1.6 mm-wide case with a 1 mm pitch. It is rated for a resistance range of 100 ohms to 200 kilohms and a working voltage of 35 V. In a 1.85 mm-wide case, the PR135 features a 1.35 mm pitch, a resistance range of 100 ohms to 300 kilohms, and a working voltage of 75 V. Finally, the PR182 occupies a 3 mm wide case with a 1.82 mm pitch and is rated for a resistance range of 100 ohms to 1 megohm and a working voltage of 100 V. All three products feature a power rating of 100 mW per resistor at +70 °C and an operating temperature range of -55 °C to +155 °C.
PR series high-precision resistor arrays feature pre-tinned terminations over a nickel barrier. They are available in waffle pack or tape-and-reel packaging.
Samples and production quantities of the new devices are available now, with a lead time of 10 weeks for larger orders.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers
of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors,
and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial,
computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product
innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can
be found on the Internet at www.vishay.com.
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