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| 19 Apr 2008 01:22:04 |
| ArameFarpado |
| about hFE multimeter test... |
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 |
| 01 May 2008 11:26:53 |
| GvdH |
| Re: about hFE multimeter test... |
ArameFarpado <a-farpado.spam@netcabo.pt > wrote in news:fubdvc$fm5$1@news.datemas.de: > 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 |