600 V, 8 A, 55 ns — the PFC and snubber workhorse
The Vishay VS-8EWF06SLHM3 is a 600 V, 8 A standard fast recovery diode in a D-PAK (TO-252AA) surface-mount package. It is part of Vishay's automotive-grade series, carrying AEC-Q101 qualification for use in under-hood and chassis-domain electronics. The 55 ns reverse recovery time (trr) is the headline switching parameter — fast enough to keep turn-off losses low in hard-switched PFC boost stages, flyback clamps, and output rectification in DC-DC converters switching in the 50–100 kHz range.
Junction temperature and leakage at 600 V
Reverse leakage is specified at 100 µA at the 600 V rated reverse voltage — a figure to budget for in high-temperature idle conditions where leakage doubles the standby dissipation in the diode.
Active lifecycle — no end-of-life watch needed
AEC-Q101 qualification and ROHS3 compliance are confirmed on the part's pedigree, so it qualifies for automotive PPAP submissions without additional qualification paperwork.