Worst-case prediction using the Arrhenius model

We present in this paper an Arrhenius-based method of assessing MTTF as applied to one of our own products. This undertaking was motivated by a sudden mechanical change to a product nearing shipment that raised its internal operating temperature 10degC. As the time available precluded any retesting, we undertook this analysis in lieu of a full requalification to show that MTTF would not be compromised by the chassis swap. Recommendations are also given on improving the current analysis.