I would not worry to much about the markings in the datasheet. I am sure you have the coerect component. It can have been produced on a new factory since they made the datasheet as one exampleThanks. I have this datasheet but the "package marking and ordering information" on page 2 states that it should be marked FCPF20N60.
Timescope
by Duane Benson
by Jeff Child