Fmu22u replacement in Skar RP-4500

I have a Skar RP-4500.1 with blown Power section which uses IRF3205PBF and dual series rectifier FMU22U.

The FMU22U's were blown to shreds. I was hoping ether of the attached datasheet would be a suitable replacement. I don't mind the package style because the heatsink will have kapton tape as an insulator.


  • lqa20t300c_lqa20b300c-1512050 (1).pdf
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  • FMU22U_FMU23U_FMU24U_FMU26U.pdf
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  • stth806tti-956907.pdf
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  • received_139210104022115.jpg
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I may have to re-configure the board layout with FMG 22R and FMG22S. I have those on hand. I do have FMU32U but those are 20amp TO-3PF and I would have to modify them to make them fit.

I cant locate a replacement from other than UTsource and they are shutdown till March due to Coronavirus. Its a 50/50 shot whether I get fake parts.