50 ns reverse recovery time — what it means for the switching loop
A 50 ns trr puts this diode in the fast-recovery class suitable for hard-switched converters operating in the tens of kilohertz range. In a continuous-conduction-mode PFC or a 100 kHz flyback, that recovery charge directly sets the turn-off loss in the companion MOSFET and the snubber dissipation. The 50 ns figure is the maximum at rated conditions — actual recovery softness depends on the forward current and di/dt, but this part gives the designer a known recovery window to size the RC snubber around.
Package and mounting — D2PAK land pattern notes
The D2PAK footprint is standard — three leads plus a tab that carries the cathode. The tab must be soldered to a sufficient copper area on the PCB to pull heat out of the junction.
Lifecycle and sourcing
This diode is listed as Active — no last-time-buy notice, no NRND flag. For BOM lines that need a fast-recovery 500 V / 5 A surface-mount diode, this part is a stable choice without an imminent replacement risk.