Schottky pair with common anode — what the 5 ns trr means
The Infineon BAT 54-06 B5003 is a dual Schottky rectifier in a common-anode configuration, packing two 200 mA diodes with a shared cathode connection into a single SOT-23-3 package. The 5 ns reverse recovery time is the headline switching spec — Schottky diodes store negligible charge, so this part transitions from forward to blocking state fast enough for high-frequency rectification, clamping, and flyback catch-diode duty in DC-DC converters switching at hundreds of kilohertz. The 30 V reverse voltage and 800 mV forward drop at 100 mA are typical for this Schottky family, trading a slightly higher Vf than a 20 V variant for more headroom on 12 V and 24 V rails.
Obsolete — what that means for a BOM line
Infineon lists the part as Obsolete. For a production BOM calling this common-anode Schottky pair, the procurement path is the surplus and broker channel.
