JL e1800D output sub?

[mbates14]

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

 

[mbates14]

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]

What did you end up doing with this one?

 

[mbates14]

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]

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...