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MOSFET identification

 
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Bag 'o' Bones



Joined: 01 Jun 2008
Posts: 1

PostPosted: Sun Jun 01, 2008 6:54 pm    Post subject: MOSFET identification Reply with quote

I’m throwing up this post on behalf of chap I know who lives on a narrow boat so does not have internet access.

Basically I need a bit of advice identifying a blown MOSFET removed from his 12volt – 230volt inverter. He’s prepared to throw it away but as inverters are not particularly cheap he’s was quite keen to get it repaired.

As far as he knows if the MOSFET is replaced the unit will work again. If not he’s going to sling it.

The component in question I’m assuming is a power MOSFET made by a company called FAIRCHILD
It is the typical square shape with a metal tag with a hole in it to bolt it to the heat sink and three legs.

The writing on the component is laid out exactly as such:

F 1 FO9
FQP
50NO6

(The capital F is the Fairchild Logo they print on all of their components as far as I can make out)

I know a little bit about electronics but not enough to solve this problem. I've found a refrence to the components code on the Web but I think it's slightly different:

http://www.fairtek.com.cn/cpjs/e_mosfet.htm

So the question is where can I buy one of these components or can you suggest another make that will do the job? Confused

Cheers Andy Cool
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vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Sun Jun 01, 2008 7:44 pm    Post subject: Reply with quote

50n06 is the generic number, made by different manufacturers such as "UTC" or "ON semiconductor"---- FQP denotes the manufacturer which in this case is Fairchild. Here's the specs;
http://www.fairchildsemi.com/ds/FQ/FQP50N06.pdf

Not sure which supplier is close to you, but should be able to get it pretty much anywhere or even on ebay. In inverter application, best try not to substitute to a different number as the breakdown/timing issues can be critical.
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Old Bassid
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PostPosted: Wed Jun 04, 2008 8:28 am    Post subject: Dumbos who think r/p mosfet will fix!!!. Reply with quote

Lissen you utter [email protected]#$%&^*()!!!S- you must check/r/p comp in circuit- there will be faulty causing mosfet to fail- these guys are reliable AS LONG AS ALL OTHER COMP ARE OK!. B/r from an old bassid.
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vtraudt
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PostPosted: Sun Jun 15, 2008 6:29 pm    Post subject: 50N06 bad Reply with quote

How can I check that the 50N06 is bad?

If those Mosfets don't go bad, what else may cause them to get destroyed?

My application is an amplifier where those 50N06 are in, and one shows short to ground on 3 legs (not right I would say).

vtraudt
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PostPosted: Sun Jun 15, 2008 6:32 pm    Post subject: Re: 50N06 bad Reply with quote

vtraudt wrote:
How can I check that the 50N06 is bad?

If those Mosfets don't go bad, what else may cause them to get destroyed?

My application is an amplifier where those 50N06 are in, and one shows short to ground on 3 legs (not right I would say).

vtraudt


Mosfets should read open so yes it is bad.
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