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|9th February 2010, 04:43 PM||#1|
Join Date: Dec 2008
Phase Evolution Opus 500.1 replace question
my friend gave me a broken Phase Evolution Opus 500.1 class D amplifier.
It has broken PSU mosfet caused by failure in output stage.
I replace those mosfet (irfz44) with IRF3205 with 10ohm gate resistor.
I turn on-off very well, of course.
The output stage is made by FQP12P20 and FQP19N20 in to220 package.
Someone, very smart, replace one FQP19N20 with another mosfet 600Vdss and 10A...in fact...a disaster. (crazy man!)
That caused the damage.
I searching for original output mosfet but i would know if it is possible to use another mosfet, like IRF640 and IRF9640 by IR (similar specs)
I know that some class D amplifier need only original parts (like mtx).
This is one of those?
I found original FPQs, but they costs 2€/piece + shipping (10€)
I found IRF much cheaper.
Thank you very much
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