To μυστικό είναι στο reverse recovery time φίλε μου. Καμμία σχέση αυτό που είχε και αυτό που έβαλες...Σου παραθέτω μια μικρή περιγραφή:
What is reverse recovery time...
Ο χρόνος του μαμίσιου είναι 36ns ενώ ο χρόνος αυτού που έβαλες είναι 263ns...7,5 φορές περισσότερος μέχρι να σταματήσει να διαρρέεται από ρεύμα... Να γιατί σου ψήνεται...
If a diode is conducting in a forward condition and immediately switched to a reverse condition, the diode will conduct in a reverse condition for a short time as the forward voltage bleeds off. The current through the diode will be fairly large in a reverse direction during this small recovery time.
After the carriers have been flushed and the diode is acting as a normal blocking device in the reversed condition, the current flow should drop to leakage levels.
This is just a generic description reverse recovery time.