Small-signal switching diode — 80 V, 250 mA, 4 ns trr
The Infineon BAS16WE6433HTMA1 is a standard switching diode in a SC-70 SOT-323 package rated for 80 V reverse voltage and 250 mA average rectified current. Its 4 ns reverse recovery time suits fast-switching applications like signal clamping, flyback catch diodes in low-power DC-DC converters, and general-purpose commutation below 250 mA. The 1.25 V forward drop at 150 mA is typical for a small-signal silicon diode in this current class.
Infineon lists the BAS16WE6433HTMA1 as obsolete.
Key ratings for BOM fit
The 80 V reverse voltage gives enough headroom for 48 V bus or 24 V industrial supply clamping. The 250 mA average rectified current limits the part to signal-level or light-load roles — not a main rectifier. The 4 ns trr means it can handle switching edges in the low-MHz range without excessive recovery losses. Junction temperature maxes at 150 °C, consistent with standard commercial temperature-grade designs. The 2 pF capacitance at 0 V keeps loading light on high-speed digital or RF lines.