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Vishay resistor chips in new cases0402, 0603, 0502

Posted: 24 Sep 2004 ?? ?Print Version ?Bookmark and Share

Keywords:vishay intertechnology? resistor chip?

Vishay Intertechnology Inc. released its E/H MIL-qualified resistor chips in three new sizes (0402, 0603 and 0502 cases), giving designers added flexibility in selecting devices for circuits requiring high-performing, high-precision resistors.

Intended for high-reliability military applications, the new Thin Film resistor chips meet MIL-PRF-55342 specifications. Established reliability is assured through 100 percent screening and extensive lot testing, through which the new E/H devices have been rated for an "R" failure rate level.

According to Vishay, these new resistors represent the industry's first established reliability resistors in standard package sizes with ratings from 100 ohms to 160 kilohms, and an established reliability failure rate of 0.01 percent per 1,000h. As a result, designers no longer need use commercial, non-qualified devices for applications requiring this combination of performance and size, the company added.

The E/H resistors' electroplated nickel barrier layer enables operation at temperatures up to 150C, and their high-purity alumina substrate allows for high power ratings. In addition to a noise of <-25dB and a voltage coefficient of 0.5ppm/V, the non-inductive new E/H devices feature an absolute TCR down to 25ppm/C, tolerances down to 0.1 percent, typical wraparound resistance of <0.010 ohms, and in-lot tracking of <5ppm/C. Vishay added that the new products' all-sputtered wraparound termination ensures excellent adhesion and dimensional uniformity.

Samples and production quantities of the resistor chips are already available, with a lead time of stock to 10 weeks for larger orders.

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