I'm gonna toss this question up on a couple boards, and see if I can get a useful answer from either one. I'm pretty positive, but considering as though most of the information on those pages means darn near nothing to me, I want to know if there's someone that can make sense of it.
A long time ago I exploded the living shit out of a high-power APC UPS by trying to start an air conditioner off it (it was in spec, bastards! stupid starting surge). VERY stupid, yes, I know, but at least it was better than dropping a screwdriver onto the board while it was running. Mmm... I tend to do this a bit.
Anyway, the parts that seem to be affected were a set of MOSFETs on the board. Two of them are visibly damaged (aka: shattered), I don't know about the others. I also noticed two traces on the board were damaged, but that should be fixable with some hard-wiring.
Unfortunately the MOSFET chips used on the board are out of production (obviously, given the UPS is over 10 years old), and I wasn't able to find a direct part-replacement on Mouser's part search. However, I did find the original part's data sheet, and an approximate guess of what should be a drop-in replacement/upgrade.
Can anyone tell me if this part (STP35NF10) is an appropriate replacement for this original part (SMP40N10)? What specifications in those sheets are "upgradable" (e.g., say, less heat, higher capacity) with modern manufacturing, while the UPS wouldn't need any other changes? Anything at all?
The UPS uses 4 sets of 5 of these chips, and I think it's just one row that got knocked out. But is there a way to test if others aren't working properly - other than to replace the damaged ones, plug it in, and see if it fries itself?
Thanks!
