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ArameFarpado

Posted: Fri Apr 18, 2008 7:22 pm

Guest

Hi all...

a transistor "BD435" is giving me 440 in hFE test on the multimeter, when
the tecnical data i've found tell me min=40 max=475...

does this mean the transistor is really in good shape?
can it be busted and still give a good hFE test result on the multimeter?

thanks
ArameFarpado

GvdH

Posted: Thu May 01, 2008 6:26 am

Guest

ArameFarpado <a-farpado.spam@netcabo.pt> wrote in
news:fubdvc$fm5$1@news.datemas.de:

Quote:

Hi all...

a transistor "BD435" is giving me 440 in hFE test on the multimeter,
when the tecnical data i've found tell me min=40 max=475...

does this mean the transistor is really in good shape?
can it be busted and still give a good hFE test result on the
multimeter?

thanks
ArameFarpado

A transistor with a high hFE is not in a better shape than a transistor
with a low hFE. It also varies with the collector current, temperature
and other parameters.

If a transistor gives a good hFE test result, it's probably OK.

--
webmaster http://www.hobby-electronics.info

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