[sdiy] Schottky diode recommendation please

[Tom Farrand]

Tom,

Through-hole or SMT?

Through-hole has many fewer choices.  Might try an NXP BAT85,113 which
occupies about the same space as a 1N4148 and its VF is 400mV.  Speed
is 5nS, which is pretty quick.  But if you could live with SMT, I'd
suggest a Vishay LL101C-GS08.  It has a VF of only 390 mV and has a
speedy 1nS switching time.  Don't know about your circuit so don't
know about voltages to which these diodes would be subjected in the
"off' state.

Peace.
Tom Farrand


On Sun, Feb 23, 2014 at 6:54 PM, Tom Wiltshire <tom at electricdruid.net> wrote:
> Hi all,
>
> If I wanted a Schottky diode to use as a diode clamp to speed up a transistor's switching times, what would be a typical part to use?
>
> I'm planning something like the image from this page:
>
> http://www.vk6fh.com/vk6fh/schottky%20diode.htm
>
> For "normal" diodes, I'd always grab a 1N4148 as a standard part, but for schottky diodes I've got no idea what the equivalent "standard part" would be.
>
> Thanks,
> Tom
>
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