The Infineon BAT54-06E6327 is a dual Schottky barrier diode in a common-anode configuration, packaged in a PG-SOT23-3-3 surface-mount case. Each diode is rated for 30 V reverse voltage and 200 mA average rectified current, with a forward voltage of 800 mV at 100 mA and reverse leakage of 2 µA at 25 V. The 5 ns reverse recovery time confirms this is a switching diode, not a line-frequency rectifier — it is sized for high-speed clamping, OR-ing, and steering in low-power DC rails up to 30 V.
Forward drop and leakage — the two numbers that decide the fit
The 800 mV forward drop at 100 mA is typical for a 30 V Schottky in this current class — not the lowest Vf you will find, but the trade-off is the 2 µA reverse leakage at 25 V, which stays low enough for battery-powered circuits that spend most of their time in standby. If your load pulls 200 mA continuously, the 200 mA average rating per diode is the ceiling; derate for ambient temperature above 25 °C per the thermal curve. The 5 ns trr means this diode will not slow down a 1 MHz switching node.
The SOT-23-3 (PG-SOT23-3-3) footprint is standard — three pins, 1.9 mm pitch, 2.9 mm body length. The common-anode pair shares the center pin as the common anode; the two outer pins are the cathodes.
Infineon lists the BAT54-06E6327 as Active. The base product number is BAT54, and the -06 suffix denotes the common-anode pair variant.