>
> what will they act like? i remember doing some research (back in the
> early 60's) into the use of the common cylindrical glass fuse as
> protection for expensive (then) semiconductor circuits. as i recall,
> our results could be summarized like this:
>
> "semiconductor devices are very effective overload protection for
> fuses"
Hi George,
A fuse does nothing other than prevent long term thermal damage.
A look at Littlefuse's catalog shows that it takes a several
hundred percent overload for seconds to open up some fast blow
fuses.
Even ultra fast blow fuses are too slow for semiconductors, so your
data sounds correct.
73, Tom W8JI
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|