Mouser has in stock IXTP08N100 or IXTP01N100.looks like the DN2540 chip is also unobtanium.
These are better than DN2540.
https://eu.mouser.com/ProductDetail/IXYS/IXTP08N100P?qs=jFjNEgmwGdfXc8JRp0enOQ==
https://eu.mouser.com/ProductDetail/IXYS/IXTP01N100D?qs=Y0zvYW9k4XSWN3icqohYSQ==