Dual Schottky array in a 4-pin SOT-343
The BAS4007WH6327XTSA1 from Infineon packs two independent Schottky diodes into a single PG-SOT343-4-3 package, with a reverse voltage rating of 40 V and an average rectified current of 120 mA per diode. The 100 ps reverse recovery time (trr) is typical for a small-signal Schottky — this speed advantage over a pn-junction diode matters in high-frequency rectification, snubbing, and clamping circuits where stored charge would otherwise cause switching losses or ringing.
Forward drop and leakage — the Schottky trade-off
Forward voltage is 1 V maximum at 40 mA forward current, which is the conduction loss floor for the signal currents this part is designed to handle. Reverse leakage is 1 µA at 30 V reverse bias — higher than a pn-junction, but acceptable for the signal-level circuits this array targets; the trade-off is lower forward drop for higher leakage, which governs the choice in battery-powered or high-impedance nodes.
Board-fit and sourcing posture
The SC-82A / SOT-343 footprint (PG-SOT343-4-3) is a standard 4-pin surface-mount package — the two diodes share common cathode or common anode? The datasheet's pinout must be consulted for the exact configuration; the supplier device package string confirms the Infineon-specific variant code.