What kind of FET is this?

[Guest]

Archived from groups: comp.sys.ibm.pc.hardware.video,sci.electronics.repair (More info?)

In my endeavor to fix an IBM monitor, I have found a FET that has a (full
continuity) short between S and D. It is in the SO-220 package with the
following lettering on it:
SEC
730
1RF9620
The circuit board clearly marks the device as a FET. A Google search on the
numbers I list above brings only one website that appears to sell the device
but it's all in Chinese! Do I need a translator or is there a comperable FET
I can put on the PCB? It was located on a heat sink and close to the flyback
coil and the power supply on the monitor's PCB. There is another module that
looks identical to it and mounts on the same heat sink. I do not have
sophisticated transistor testers to look up the gain and all that but
perhaps I'm going ot have to find one?


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[Guest]

Archived from groups: comp.sys.ibm.pc.hardware.video,sci.electronics.repair (More info?)

Scott:
The IRF9620 is a P-Channel FET rated at 200 V, 3.5 AMP, 40 watt with
and internal resistance of 1.5 ohm. The SEC means Samsung Electric Co
(I think).
I would probably replace it with an IRF9630 wich is rated at
6.5 Amp and 74 watt. Or an equivalent NTE replacement FET.
Hope this helps....
John

 

[Guest]

Archived from groups: comp.sys.ibm.pc.hardware.video,sci.electronics.repair (More info?)

C:\> DELTREE /Y Scott M:
> In my endeavor to fix an IBM monitor, I have found a FET that has a (full
> continuity) short between S and D. It is in the SO-220 package with the
> following lettering on it:
> SEC
> 730
> 1RF9620
^ I rather than 1

IRF9620?

http://www.google.com/search?q=IRF9620+datasheet&sourceid=firefox&start=0&star
t=0&ie=utf-8&oe=utf-8

Note: Link may wrap. If so, search Google for "IRF9620"


Possible replacement: SFP9620 of Fairchild
www.fairchildsemi.com/pf/SF/SFP9620.html

I hope that this helps
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[Guest]

Archived from groups: comp.sys.ibm.pc.hardware.video,sci.electronics.repair (More info?)

C:\> DELTREE /Y John Gill:
> Scott:
> The IRF9620 is a P-Channel FET rated at 200 V, 3.5 AMP, 40 watt with
> and internal resistance of 1.5 ohm. The SEC means Samsung Electric Co
> (I think).
> I would probably replace it with an IRF9630 wich is rated at
> 6.5 Amp and 74 watt. Or an equivalent NTE replacement FET.
> Hope this helps....

Or it can be replaced with the SPF9620 of Fairchild which they say to be a
replacement:

www.fairchildsemi.com/pf/SF/SFP9620.html

--
Chaos Master®, posting from Brazil. REPLY TO GROUP!
MSN: wizard_of_yendor@hotmail.com http://marreka.no-ip.com
"When a person turns to wrong, is it a want to be, belong?
Part of things at any cost, at what price a life is lost?"
Mozilla for Brazilians: http://www.mozilla.org.br