Replacing a MOSFET - electrical help needed

[spleenharvester]

Hey all. I've got an L500 motherboard with a faulty MOSFET, model number TPCA8028-H. Datasheet: http://media.digikey.com/pdf/Data Sheets/Toshiba PDFs/TPCA8028-H.pdf

Closest match I have is a TPCA8036-H. Datasheet: http://www.dzjsw.com/cxyg/t/TPCA8036-H.pdf

Basically, can I replace the 8028 with the 8036? Only difference I can see is the current and avalanche energies. Can't see a laptop pulling 150A (lol) but not sure about avalanche energy.

Cheers

 

[Tealc]

Seems to be like a slightly improved version on some specs at the compromise of others. The compromised ones, as you say, shouldn't be that critical.

I reckon it is worth a try if you can't source the proper component.

 

[spleenharvester]

I think I may do, I got the motherboard for a few quid anyway so it doesn't matter if it goes wrong haha. Can only find the TPCA8028 on chinese sources whereas I have some of the others spare.

Also got one of these: http://pdf1.alldatasheet.com/datasheet-pdf/view/163183/FAIRCHILD/FDMS8660S.html the specs look a lot better, but it has a schottky. Reckon it would be a better option?

 

[Tealc]

I'd go with the 8036 if you have some spare. It's very close whereas the 8660 seems to be a little more different. It may have better specs but the board will be designed around the 8028 and may not respond well to a different type of FET being thrown in there.

 

[spleenharvester]

I'll replace both the faulty one and the one next to it with TPCA8036-H then, worth trying! Cheers bud, I'll post back if I get it working

 

[Diagro]

Take pics please I wana see before and after

 

[spleenharvester]

Saw the above post a bit too late unfortunately!

Well progress anyway, although the MOSFET is indeed a correct replacement, the short is somewhere else in the circuit - with another component in the line removed the one I thought to be faulty tests as fine. At least I'm on the right track!

 

[Diagro]

Oh intresting. Keep it up.