So recently I was experimenting with some 100W LED's (30-35 VDC @ 3A) and a "1200w" DC-DC boost converter that goes up to 85V.
While at an input of ~12 VDC and an output of ~26 VDC, I accidentally shorted the output, and the main MOSFET blew and is now shorted out. I un-soldered it from the board, to see the model, but while I was able to find the spec sheet, I was not able to find the MOSFET for sale for a reasonable price (and I only need one).
I put another MOSFET that I had laying around in it (I don't know the part number), and it worked, but I'm almost certain that it isn't rated for such high voltages, as it was creating a lot of heat (no load) at anything above maybe 30 VDC and started dropping when it got to ~70 VDC.
The boost converter is rated up to 85 VDC (which is the limit of the original MOSFET).
Out of a random moment of insanity, I purchased a IRFP4468 which is rated for a slightly higher voltage (100v VS the 85 of the original) and a higher amperage.
The original MOSFET is an NCE85H21TC
Will the IRFP4468 work in place of the original MOSFET, or did I waste my money?
I followed where the pub goes and traced it in the included picture. I don't have the schematic and drawing it by hand would take days.
The converter had two 15A fuses in parallel in the input, but I bypassed them and enlarged the positive rail with more solder, as it was heating up and causing a voltage drop. I'm pretty sure that even without the bypassed fuses, the MOSFET would've died, as the cables I was using are extremely thin, about half of a spaghetti noodle, including the coating, so I'm sure I wasn't passing the ~15A output needed to run through those cables in order for the 30A input fuses to blow.
Thanks for the help in advance.