Specifically the LNK616 flyback regulator. They have 1N4007 in their dataheets/appnotes. But the 1N4007s trrs are all over the place. Often around 1us. The regulator has a minimum on-time of
700ns, and really does not like surge currents. What are better specced alternatives?
How about
Cheers
Phil Hobbs
thank you.. forgot to say: it's all on perfboard. will use UF4007.
Slower diodes are used in the clamp for a reason. That said, I've never seen 4000 series specified there.
In4937 (from memory) often used with trrs in the >500ns range. Don't use ultrafast parts there. Leakage energy is intended to be applied into the load during clamping, rather than being burnt.
RL
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