When either Power, Operating or Power Stress Ratio is the selected parameter, the only choice available for Minimum rating is None. The choices available for Maximum rating are None (default) and Constant Derated Value when the parameter is operating current. The choices are None (default), Constant Derated Value, Standard Derating Curve, and User-Defined Derating Curve when the parameter is Power Stress Ratio. When Constant Derating Value is selected, Nominal and Worst case are shown.

When Standard Derating Curve is selected, Nominal and Worst case become available for several fields. A checkbox for indicating whether you want to use a particular derating curve for the part type might also appear. For more information, see Standard Derating Curves.

When User-Defined Derating Curve is selected, Nominal and Worst case tables become available. For more information, see User-Defined Derating Curves.