Looks like an STP80NE06-10 (N-channel MOSFET, 60 V, 80 A, STMicroelectronics). Looks like their STP100N10F7, STP110N10F7, or STP130N10F3 might be suitable replacements. If these are used in a complementary output stage, as a minimum the corresponding P-channel devices should also be replaced.
Thanks I was searching the top and the middle #. I thought the bottom was the date. LOL. It's for the power supply section there all burnt replacing them all. The customer was trying to play the amp off a weak second battery that wasn't charging because the wire was melted at the fuse under the hood do to a bad terminal.
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