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mbates14 20th September 2012 08:33 PM

JL e1800D output sub?
I need a substitude for the 35N15 output thats in there, ON Semi put these on EOL awhile back.

mbates14 21st September 2012 01:15 AM

Closest thing I found was the FDP2552, which has the same voltage/amperage rating, but the on-resistance is lower.

the biggest issue is the gate charge is nearly half of the old one, and the gate capacitance is lower. So that means i would have to change all the outputs, and would the drivers handle it?

jlind54 5th December 2015 04:07 AM

What did you end up doing with this one?

mbates14 5th December 2015 12:09 PM

I don't honestly remember because this thread is a little bit old. Also I no longer work for the company that I was doing these repairs for.

jlind54 6th December 2015 06:45 PM

I had fairly good results using irf3710z and swapping the 47 ohm resistors to 68 ohm. Could probably have left the original 47 ohm in but when I originally tried using the irf3415 it ran hot at idle so I swapped resistors around a few times trying to get the 3415's to run cooler...

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