I am sort of a novice in Reliability Analysis,and would like your help: We are doing reliability analysis on a tactical radio. Radio has many boards in a closed Aluminum chasis. The ambient temperature inside the box (ie radio) will be about 75°C. When we initialize the parameters for the analysis do we set the ambient temperature at 75°C or air ambient temperature outside the box (ie 25°C).
Many tks for your help.