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Search Forums Recent Posts. Feb 11, 1. I only have available IRFN units.

View irf640b datasheet:

Can I make the replacement safely? Feb 11, 2. Hi Jorge and welcome to Electronics Point What brand are the existing devices? Is there a manufacturer’s logo?

Feb 11, 3. Hi Kris Nice to participate in the forum.

Datasheet «IRF640B»

Both Mosfets are International Rectifier. Feb 11, 4. Yes, I think you’re probably right. Feb 11, 5.


They are from different manufacturers. I have attached them. Feb 11, 6. I’ve asked Steve for his advice. Feb 12, 7.

IRF vs IRFN | Electronics Forums

My initial thoughts are that it is an entirely suitable replacement but its hard to compare them on a mobile device. I will do some more thorough investigations later in the day. Feb 13, 8. As long as the device is not required to operate in avalanche mode at energies near the single pule limit I would have no hesitation in swapping the IRF for an IRFN. Feb 13, 9. You must log in or sign up to reply here.

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