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Old 28th February 2005, 01:39 PM   #1
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Default Fairchild Mosfets for Aleph?

Hi, woud this be a suitable replacement for the IRF mosfets?

http://www.fairchildsemi.com/ds/FQ/FQH44N10.pdf

Thanks
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Old 28th February 2005, 05:31 PM   #2
MikeW is offline MikeW  United States
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Should work OK with rail under 50 volts.
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Old 28th February 2005, 06:43 PM   #3
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As I understand it, Fairchild, a subsidary of National
Semiconductor, purchased Samsung's power Mosfet fab facility in
Korea with staff and who knows what else.

We use Fairchild parts and like them very much, but I have to
say that the 9610's we got from Samsung did not work out for
us.

Where this will put Fairchild product in the future is anybody's
guess, but I'll let you know if anything develops.

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Old 28th February 2005, 08:06 PM   #4
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Thanks Nelson and Mike,

Paul
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Old 28th February 2005, 09:47 PM   #5
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The specs looked great and I thought I was on to something but after doing a search the only distributor that even lists them is Newark and they have a lead time of 262 days and a minimum order of 450...
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Old 28th February 2005, 09:50 PM   #6
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The Harris 9610 is available as far as I know, and is about
as good.
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Old 28th February 2005, 09:56 PM   #7
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Nelson, I apologize for not explaining this earlier, these are actually power mosfets in a TO-247 package.

Quick Specs:

48A, 100V, RDS(on) = 0.039W @VGS = 10V
Low gate charge (typical 48 nC)
Low Crss (typical 85 pF)
Fast switching
100% avalanche tested
Improved dv/dt capability
175C maximum junction temperature rating


Thanks,
Paul
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Old 1st March 2005, 12:07 AM   #8
MikeW is offline MikeW  United States
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Default FQA19N20

I have some FQA19N20's. Four new and 8 that I swapped out of another amp. The VGS is 4.9-5.1, to high for my Mini-A's. If you want them send me an E-mail.
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Old 1st March 2005, 01:14 AM   #9
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Default Re: Fairchild Mosfets for Aleph?

Quote:
Originally posted by ppereira
Hi, woud this be a suitable replacement for the IRF mosfets?

http://www.fairchildsemi.com/ds/FQ/FQH44N10.pdf

Thanks

5 amps bias at about 20 V idle. Sweet.



BTW, Where do you get all these transistors, Mike?
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Old 1st March 2005, 01:48 AM   #10
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Default Re: Re: Fairchild Mosfets for Aleph?

quote :"5 amps bias at about 20 V idle,sweet"
what does this mean?

i think one mosfet can not bear 5A*20V=100w.

Mr. Pass, would you please tell me detail information inside?
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