170 V Schottky for the high-voltage rail — why the voltage class matters
The 170 V Vr rating places it above the 100 V and 150 V Schottky tiers, making it a fit for 48 V to 72 V automotive bus rectification, high-voltage OR-ing, and output rectification in DC-DC converters where the reflected voltage exceeds 100 V.
AEC-Q101 and 175 °C junction — the automotive gate
20 A per diode with 920 mV Vf — conduction loss budget
The 30 µA reverse leakage at 170 V is typical for a 170 V Schottky; leakage doubles with temperature, so the thermal design should account for higher standby losses at elevated junction temperatures.
The ROHS3 compliance covers the EU RoHS exemption regime; no additional compliance paperwork is needed for European automotive builds.
D²PAK footprint — what the pick-and-place needs to know
The D²PAK (TO-263) package has a large exposed tab on the bottom that must be soldered to the PCB copper island for both electrical connection and thermal dissipation — the reflow profile should follow the solder paste manufacturer's recommendation for the pad size, typically 4.9 mm x 10.4 mm for the tab.