It's never a good idea to exceed manufacture's specifications. It may have nothing to do with cooling. For instance, the fusing current of a 1 mil bond wire is just above 1 amp. As for your question I don't recognize the term 'Bdc'. Fred Townsend Jomesh P A wrote: >Hi experts,Sorry, its not exactly an SI Question, but can anybody help me?I >have a doubt in the specifications of a transistor. The datasheet says an >absolute maximum collector current of 1A. But if we provide sufficient >cooling, can we use it to carry higher currents? Also, the datasheet says the >transistor has an hfe of 25 for IC = 150mA and VCE = 2V. To design a switch >using this transistor with a load of approximately 1A, what could be the best >Bdc to assume???Thanks in advance.Jomesh >------------------------------------------------------------------ >To unsubscribe from si-list: >si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field > >or to administer your membership from a web page, go to: >//www.freelists.org/webpage/si-list > >For help: >si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > >List FAQ wiki page is located at: > http://si-list.org/wiki/wiki.pl?Si-List_FAQ > >List technical documents are available at: > http://www.si-list.org > >List archives are viewable at: > //www.freelists.org/archives/si-list >or at our remote archives: > http://groups.yahoo.com/group/si-list/messages >Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > > > > > ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu