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Old 26th February 2010, 12:46 PM   #1
tomes is offline tomes  Malaysia
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Default replacement for mje15003&4

Hi, need help from you all recomend which are the best tr to replace my old kit a class a amp which just use mje15003&mje15004 one each per channel. thank
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Old 26th February 2010, 01:58 PM   #2
HighTec is offline HighTec  Croatia
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Hm, those transistors are way obsolete and hard to find their datasheet. I think they are 120-150V, 8A, 50W transistors but I'm not sure. Try to replace them with MJE15030/ MJE15031.

http://www.onsemi.com/pub_link/Colla...MJE15028-D.PDF

Edit: are you sure you read it right? Maybe it's MJ15003? Dunno.

Last edited by HighTec; 26th February 2010 at 02:03 PM.
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Old 26th February 2010, 02:25 PM   #3
alexcp is offline alexcp  United States
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If that's MJ15003/4, they should still be available (ON Semi, for example, lists them as "Active" in the lead free version). A good replacement would be MJ21193/4 - they are more recent and said to have less Hfe "droop" at high collector current.
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