In a typical center-tap or two-phase configuration the pair delivers 16 A total, with each diode handling one half-cycle. The 770 mV forward voltage at 8 A sets the conduction loss floor — at 8 A that's about 6.2 W per diode, so the D2PAK tab needs a solid copper pour or a heatsink to keep junction temperature below the 175°C maximum.
STMicroelectronics lists the STPS16H100CG as Obsolete.
Package and thermal — D2PAK layout notes
The STPS16H100CG comes in a TO-263-3 (D²Pak, 2 leads plus tab) surface-mount package, also referred to as D2PAK.
