Dual 8 A fast-recovery diode in a PowerFlat 5×6
Its 40 ns reverse recovery time (trr) qualifies it for high-frequency switching in automotive and industrial power converters, where low switching losses matter. The device is AEC-Q101 qualified and carries the ECOPACK®2 lead-free finish, built for surface-mount assembly with wettable flanks for automated optical inspection.
40 ns trr — switching loss in the power stage
The 40 ns reverse recovery time is the key parameter for a fast-recovery diode: it determines how quickly the diode turns off after forward conduction. In a 200 V, 8 A boost or flyback converter, that 40 ns trr keeps the reverse-recovery charge low, reducing the MOSFET turn-on loss and ringing. Compare that to a standard 200 ns recovery diode — the STTH8L02DDJFY-TR cuts the recovery charge by roughly a factor of five, which directly lowers the heat sink requirement at the same switching frequency.
1.1 V forward drop at 8 A — conduction loss budget
Forward voltage is 1.1 V maximum at 8 A per diode.
Automotive grade and 175°C junction
The 200 V blocking voltage covers 48 V and 72 V battery systems with margin, as well as 400 V bus pre-charge circuits where the diode sees only the intermediate rail. The dual configuration in one package saves board space compared to two SMC or DPAK discretes.
The STTH8L02DDJFY-TR is listed as obsolete. That means STMicroelectronics has stopped production and the last-time-buy window has passed.