Cheap "high voltage" esc Quest

[lutach]

Originally Posted by snellemin

Yea, I added the caps in myself, which are 330uF 35V.

I had two suggestion today for replacement fets.

Fairchild FDP8860 and IRL3713.

Current fets are IRL3803. Any of you guys know which of the above would be a better choice?

I would try one of the following:

IRF2804 (Just seems to be a monster of a FET and it has lower resistance and 40 volts to be on the safe side)
IRF2903Z (Same voltage as the stock unit, but lower resistance and 20A less than the above mentioned)

[GriffinRU]

Originally Posted by lutach

I would try one of the following:

IRF2804 (Just seems to be a monster of a FET and it has lower resistance and 40 volts to be on the safe side)
IRF2903Z (Same voltage as the stock unit, but lower resistance and 20A less than the above mentioned)

I will agree with Lutach, IRF2804 is a good choice. (IRF1404 not bad also)
IRL3803 is not a stella performer, but cheap.
The only place I would worry is boost-charge capacitor, replacement FET's have higher gate capacitance by 10-15% and require more charge.
But in general with T0-220 package you cannot draw more than 75A from FET, so the lower Rdon in this case better.
Just do not short FET's mounting/heatsinking tabs!

[magudaman]

Looks like the ebay seller is no longer carrying them. Anyone know where else we can pick one of these babies up?

[lutach]

Originally Posted by magudaman

Looks like the ebay seller is no longer carrying them. Anyone know where else we can pick one of these babies up?

I can get them, but they hit me with a MOQ. I was going to get them, but if I can't test the ESC first, I can't really put my money o them just yet LOL.