g-day iam new to this whole forum thing but I need a bit of a hand finding out what mosfets I need for my no name chinease 2000w DC to AC inverter the mosfets on the inveter are labeled / 1 chip is BUL38DA and underneath that number is 0015AW and underneath that is MRC453/ 2nd chip is IRFZ48V the number underneath is I*R509H and the number under that is 506A or that bottom number is 5376 / 3rd chip is IRF840
the number under it is I*R446k the number under that is 4W6N or is 4W6T / I would really appreciate if someone knew anything about it. the problem with the inverter is that it doesn't turn on anymore because my dad left it running for along time with nothing drawing any power and he ran a power saw on it aswell. I've done some research it is most likely the mosfets that have gone bad on it.

 

BUL38D
IRFZ48V
and
IRF840

Are all MOSFETs I can find with google for sale in multiple places.

 

When parts get "blown", the damage may also extend to other parts in ways that are not immediately evident. You might replace the obviously damaged parts, turn it on, and have it fail again. In order to improve your chances of success you need to understand the circuit and look for other parts that may be compromised. Even with considerable knowledge and great care success may be elusive. To quote the man in black: "Get used to disappointment".

 

BUL38D
IRFZ48V
and
IRF840

Are all MOSFETs I can find with google for sale in multiple places.

Thanks a heap, I had no idea if the ones with similar but not the same names would work. If it does you just saved me a heap, if it doesn't work something else is probably bugged but it's still worth the try and the learning experience.

 

Why do you think the FETs are dead? And has the fuse blown?
When you repair it, first try it out with no load and wire a head light lamp in line with the battery supply. That will tend to help keep the smoke in. The lamp will flash bright when first turned on then go dark, or mostly dark when running But only with no load! That is assuming the stand by current is fairly low.
If the lamp lights bright and stays bright, there may still be some problems with the inverter.