When Telcordia released Issue 3 of the SR-332 standard, it introduced several vital updates to reflect advancements in contemporary hardware manufacturing and component geometry:
) to more accurately reflect stress levels in environments ranging from climate-controlled data centers (Ground Benign) to uncontrolled outdoor enclosures (Ground Fixed). 3. Revised Stress Curves telcordia sr-332 issue 3 pdf
λ=λb⋅QG⋅QQ⋅QS⋅QT⋅QElambda equals lambda sub b center dot cap Q sub cap G center dot cap Q sub cap Q center dot cap Q sub cap S center dot cap Q sub cap T center dot cap Q sub cap E QGcap Q sub cap G is the generic factor, QQcap Q sub cap Q is quality, QScap Q sub cap S is electrical stress, QTcap Q sub cap T is temperature stress, and QEcap Q sub cap E is environmental stress. Core Variables and Stress Factors When Telcordia released Issue 3 of the SR-332
): Measures the operating voltage, current, or power relative to the component's maximum rated limits. De-rating components lowers this factor and increases MTBF. Quality Factor ( QFcap Q sub cap F Core Variables and Stress Factors ): Measures the
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