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Old 12th December 2011, 03:23 PM   #1
Dr Zeus is offline Dr Zeus  United States
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Default Question about components IRF540/640

I'm trying to stock up on some parts I am running low with. I like ordering these parts usually from Arrow, but Arrow does not have perfectly the parts I need. Instead, they have the following:

Vishay brand IRF540
IR brand IRF640N

I know the N doesnt work well for Rockford amps in the 540 range, but what about the 640N for their power amps? What about the Vishay IRF540? Is it a perfect sub for the IR brand IRF540 (non-n)?

Thanks!
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Old 12th December 2011, 03:45 PM   #2
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Vishay parts are as good as IR as far as I know. I can't answer the question about the 640N but it would likely depend on the amp it's being used in.
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Old 13th December 2011, 12:26 AM   #3
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can the irf540a work in place of the 540 and 540n in most amps?
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Old 13th December 2011, 12:28 AM   #4
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I've never had a problem with the 540A and I used to recommend it but it appears to have gone obsolete.
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