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Posted on Dec 17, 2009

Blown ps3 mosfet

Hi,
I have a ps3 (cecha01 model) which is out of warranty and the warranty sticker has also been voided. The blu-ray drive will not work do to the mosfet with the number 4943b being blown out. All I have been able to find out about this mosfet is that it is a Dual P-Channel 20-V (D-S) MOSFET. I am trying to find a replacement for this but I can not retain the specifics of this item. I am wondering if it is a “over voltage protection“, or just the “power supplies“ mosfet. I have gathered (I think) that the voltage is from 5v to 12v. I would be grateful for what ever info you have on this mosfet.

Thank you for you time.

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  • Posted on May 20, 2011
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Http://www2.electronicproducts.com/Sony_Playstation_3-whatsinside_text-10.aspx

this should have all the specs you need. i have the same issue and have spent days searching and found this. hope this helps

  • Anonymous May 21, 2011

    the actual part number is Si4943BDY. google that and you will find the replacements for about $1.50

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