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Replacement for MOSFET

VTI_16V

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I am repairing battery charger. It has 6 STP180N55F3 mosfets, 3 are gone. Can I replace it with IRFB7440PBF? In datasheet they seem similar, except power discipation. STP180N55F3 says 300W, IRFB7440PBF says 208 but it has countinous dran current 208A while STP180N55F3 has 120A? I have some other options like
IPP023N10N5AKSA1 but it is 5 times more expensive
 

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The difference in nominal power is due to junction to case thermal resistance, it may matter if you are operating the transistor on huge heatsink with less than 2 K/W per transistor.

I would be more concerned about the lower Vdss of 40 versus 55 V. Are you sure there's sufficient voltage margin?
 

VTI_16V

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I didn't study the board layout so much, but as I saw theese mosfets are going directly to outputs (3 outputs for 3 different batterie banks). They dont have heatsinks, they are through hole mounted on the board. So my logic says that there cant be any voltage higher then 14.5 on source/drain of theese mosfets because charger is for 12V batte
 

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