Better rework this if you plan to do high amperage

I bought this to operate a 12v linear actuator and all in all, I think it will do just fine in my application at less than 15 amps for 20 seconds at a time. I would HIGHLY suggest that you pull the heatsink and at a minimum inspect the via's that are supposed to sink the heat through the board to the aluminum heatsink. This is absolutely the failure point of this device as it is inadequate for heat transfer if it was anything like mine when I received it. There was solder in only 2 of the via holes out of 18 or so on the board. A couple were completely dry, the rest had some solder in them but would never make heat transfer contact with the sink. I scrubbed off the conformal coating and applied a thin layer of solder to coat the via's then applied a small amount of cpu thermal paste and reinstalled the sink. I think this fix will help my device to live a long and productive life. But without that rework, if you tried to run anywhere near 45 amps, you'd let the smoke out in a hurry. The chips won't handle high amperage without really efficient cooling

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