30 A, 600 V, 55 ns — the fast-recovery rectifier for PFC and flyback stages
It comes in a surface-mount HU3PAK package (TO-263-8 / D²Pak variant) and is specified for a junction temperature up to 175°C.
A 55 ns reverse recovery time at 30 A forward current and 600 V blocking voltage places this diode in the fast-recovery class. The 2.95 V forward drop at 30 A is typical for a 600 V fast-recovery die.
HU3PAK package — footprint and thermal path
The HU3PAK is a surface-mount package with a large exposed metal tab (7 leads plus tab, compatible with the TO-263-8 / D²Pak footprint). The package is rated for surface-mount reflow;.
The part is RoHS-compliant per the standard ST lead-free finish. For sustainment programs, the active status means the factory line is still running; no need to qualify a substitute unless the HU3PAK package becomes unavailable.