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Author Topic: High amp PNP transistor  (Read 391 times)
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I am looking for a PNP transistor that can supply 7A at 12V.  Could someone recommend something, as I am having a hard time finding anything.

Thanks,
Ryan
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Look at these:-

http://uk.farnell.com/jsp/search/browse.jsp?N=500006+1004177+576268&Ntk=gensearch_001&Ntt=PNP+transistor&Ntx=&No=0&getResults=true&appliedparametrics=true&locale=en_UK&prevNValues=500006+1004177&originalQueryURL=http%3A%2F%2Fuk.farnell.com%2Fjsp%2Fsearch%2Fbrowse.jsp%3FN%3D500006%2B1004177%26Ntk%3Dgensearch_001%26Ntt%3DPNP%2Btransistor%26Ntx%3D%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Den_UK
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Perfect, thanks.  

I was having trouble finding search terms.
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I'd really recommend you reconsider using a P-channel MOSFET instead. A PNP transistor, even if it saturates at 0.7V Vce, will dissipate 4.9W at 7A. You're going to need a big heatsink or forced air cooling.

A P-channel MOSFET will easily handle 7A, not drop 12V down to 11.3V, and generally be a happier solution.
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