35 ns trr — fast recovery for PFC and secondary rectification
300 V / 10 A — the application envelope
With a 300 V reverse voltage ceiling and 10 A forward current per diode, this part handles the voltage stress in a 400 VDC bus PFC stage with margin, and the current density for a 200–300 W output rectifier. The 1.25 V forward drop at 10 A sets the conduction loss floor — at 10 A that is 12.5 W per diode, so the TO-220FP full-pack package must be heatsunk to keep the junction below the 175°C absolute maximum.
TO-220FP — isolated full-pack, no insulating pad needed
The TO-220FP (full-pack) package has the metal tab fully encapsulated in plastic, so the heatsink interface is electrically isolated. That saves the cost and assembly step of a separate insulating pad and thermal grease. The through-hole mounting suits single-sided or two-layer power boards where the tab is bolted directly to a chassis or heatsink.