Fairchild Mosfets for Aleph?

[ppereira]

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

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

Thanks

[MikeW]

Should work OK with rail under 50 volts.

[Nelson Pass]

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.

[ppereira]

Thanks Nelson and Mike,

Paul

[ppereira]

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...

[Nelson Pass]

The Harris 9610 is available as far as I know, and is about
as good.

[ppereira]

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
175°C maximum junction temperature rating


Thanks,
Paul

[MikeW]

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.

[Nelson Pass]

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?

[john-china]

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?