Small-signal Schottky pair for fast clamping and rectification
What the 100 ps trr means for your design
A 100 ps reverse recovery time is fast even for a Schottky — the stored charge is practically zero, so the diode turns off almost instantly when the voltage reverses. That matters in switch-mode power supplies running above 1 MHz, where the diode's reverse recovery losses would otherwise dominate the efficiency curve. It also matters for RF detector circuits and high-speed logic protection, where a slower diode would clip or distort the signal edge. The 120 mA average current rating and 1 V forward voltage at 40 mA mean this is a small-signal device — don't plan on it for power rectification above a few hundred milliamps.
The BAS 40-06 E6327 comes in the standard SOT-23-3 footprint (TO-236-3 / SC-59 compatible), with the supplier device package listed as PG-SOT23. That's a 3-lead surface-mount package with a 0.95 mm pitch and about 2.9 x 1.3 mm body.