DPAK Schottky, 25 V 5 A — what the ratings mean for the BOM
The STPS5L25B-TR is a 25 V, 5 A Schottky rectifier in a DPAK surface-mount package, part of ST's STPS5 family of power Schottky diodes. The 470 mV forward voltage at 5 A is the conduction loss floor — at 5 A the diode dissipates roughly 2.35 W, which the DPAK's exposed tab must sink to the board copper to keep the junction below the 150 °C maximum. Reverse leakage is 350 µA at 25 V — at elevated junction temperature this climbs, so the 25 V rating is best applied with at least 20 % headroom to stay inside the leakage budget in a hot enclosure.
Active production, ROHS3 — sourcing posture
The part is quoted to order against the BOM quantity; availability and current pricing are confirmed at RFQ through independent distribution channels.
Fast recovery speed — what the 500 ns ceiling means
The speed classification is Fast Recovery =< 500 ns, > 200 mA — this is not an ultrafast or hyperfast diode; it is a standard Schottky recovery speed suited for line-frequency or moderate switching applications where the reverse recovery time of a PN junction is not the limiting factor. At the 5 A average current, the diode's own switching losses are dominated by the junction capacitance, not the stored charge — the Schottky barrier eliminates minority-carrier storage, so the 500 ns ceiling is conservative for the device class.