Vishay Extends Resistance Range of E/H MIL-55342-Qualified Resistor Chips in Compact 2208, 2010, and 2512 Case Sizes

Intended for high-reliability military and aerospace applications with stringent performance requirements, the enhanced E/H resistor chips offer stable film and performance characteristics of 200 ppm at + 70 °C for 10,000 hours. Established reliability is assured through 100% screening and extensive environmental lot testing, through which the devices have been rated for an “R” failure rate level (0.01 % per 1000 hours).

The resistors’ all-sputtered wraparound terminations ensure excellent adhesion and dimensional uniformity. Exact dimensions and clean, straight edges are produced by a precise wafer-sawing process. The E/H devices’ electroplated nickel barrier layer enables operation at temperatures up to + 150 °C, and their high-purity alumina substrate allows for high power ratings.

In addition to very low noise of less than − 25 dB and a low voltage coefficient of ± 0.5 ppm/V, the non-inductive resistors feature an absolute TCR down to ± 25 ppm/°C, laser-trimmed tolerances down to 0.1%, and typical wraparound resistance of < 0.010 Ω.