The Infineon BAV99SH6327XTSA1 is a dual series-connected standard switching diode in a PG-SOT363-6-3 surface-mount package. It pairs two diodes in series inside a single 6-pin SOT-363 (SC-88) footprint, saving board space versus two discrete SOT-23 diodes.
The 80 V Vr(max) gives headroom for 48 V telecom rails and 24 V industrial buses with margin for transients. The 4 ns reverse recovery time keeps switching losses low in circuits running above 100 kHz — a 1N4148-type diode with a typical 4 ns trr is the usual benchmark, and this part matches that speed in a series-pair configuration. The 1.25 V forward drop at 150 mA is typical for a standard silicon diode at that current level.
Last Buy — plan the final order now
That means Infineon has scheduled end-of-production, and the window to place final orders is open but finite. Once the last-time-buy period closes, the part moves to end-of-life and will only be available through surplus or broker channels. If you have an active BOM line using this diode, now is the time to secure your lifetime buy or qualify a replacement.
Package and rework — SOT-363 is a friendly footprint
The PG-SOT363-6-3 package has a 1.25 mm body width and 0.65 mm pin pitch — standard for a six-pin SC-88. It reflows cleanly with a typical lead-free profile and is hand-reworkable with hot air if you keep the nozzle temperature under 350 °C and the flow low. The junction temperature limit is 150 °C, so the part itself can handle the reflow peak without damage as long as the board profile stays within JEDEC standards.