Repairing Car AMP MOSFET compatibility question

[denimdragon]

I'm repairing a Memphis Audio 16-PRX1000.1 and there are 4 blown N-Channel Mosfets but they seem to be odd-balls and I can't find them except on eBay. What I need to know is what datasheet specifications do I need to look at in order to use something comparable or better. I don't really want to get these from eBay as this is for a client and I can't risk it.

RU61150 Datasheet : https://cdn.datasheetspdf.com/pdf-down/R/U/6/RU65110R-Ruichips.pdf

I know the BVdss, Rds(on), are important, but what else should I look at when replacing a mosfet with another, and it is not a drop-in replacement?

Thanks!

[coromonadalix]

after checking the rds and the bvdss, i would check the input and output capacitance's, in audio applications i would not bother too much

BUT   i would check for similar one, with the integrated diode on drain and source pins, the rds would be my main concern

[oPossum]

IRF3205

Replace all MOSFETs in the power supply, not just the blown ones.

Check all gate resistors.

Check gate drive waveform before installing new MOSFETs.

Use a current limited supply for initial powerup.

[denimdragon]

after checking the rds and the bvdss, i would check the input and output capacitance's, in audio applications i would not bother too much

BUT   i would check for similar one, with the integrated diode on drain and source pins, the rds would be my main concern

 

IRF3205

Replace all MOSFETs in the power supply, not just the blown ones.

Check all gate resistors.

Check gate drive waveform before installing new MOSFETs.

Use a current limited supply for initial powerup.

That good news. I can source these locally. Thanks guys.