...MIL-PRF-55342-qualified thin film surface-mount resistor chips to offer an "S" level failure rate of 0.001 percent per 1,000 hours in 12 case sizes. The QPL devices are qualified to TCR characteristics E, H, K, L, and M. The enhanced resistors' established reliability is assured through 100 percent screening and extensive environmental testing that includes 100 percent group A, power conditioning, and Group B lot testing, through which the devices have been rated and approved for an "S" failure rate level.

The Vishay Dale Thin Film MIL-PRF-55342 resistors were verified in qualification to the American Society for Testing and Materials (ASTM E-595) standard test method for total mass loss (TML) and collected volatile condensable materials (CVCM) from outgassing in a vacuum environment for space level requirements.

Intended for high-reliability military and aerospace applications with stringent performance requirements, the E/H series' all-sputtered wraparound terminations ensure excellent adhesion and dimensional uniformity. The MIL-PRF-55342 thin film devices feature an electroplated nickel barrier layer for operating conditions to + 150 °C, a TAMELOX resistive element, and a high-purity alumina substrate for high power ratings to 1000 mW.

In addition to very low noise of less than - 25dB and a low voltage coefficient of < 0.1 ppm/V, the resistors offer an absolute TCR down to ± 25 ppm/°C, laser-trimmed tolerances down to 0.1 percent, and a resistance range from 10 Ω to 6.19 MΩ, depending on case size and TCR characteristics. The MIL-PRF-55342 thin film devices provide a shelf-life stability of ± 0.01 percent and are offered in antistatic waffle pack or tape-and-reel packaging.