... Could happen that a worst case escenario of a test, shall have passive
components in high temperature but active components at low temperature.
What advice could any one give me for this case?
LTspice lets you assign different temperatures to each component. See
the optional "temp=<value>" qualifier, which can be added to any
component that has a temperature dependency. It acts as an override
to the global temperature set by the .TEMP statement.
Andy