That should be fine assuming you will be driving the gate with 5V. Do not forget the pull down resistor (10K) between the port pin and ground. I am assuming an UNO as you did not tell us. If you are worried add a small piece of metal to the tab but be sure to use heatsink grease before epoxying it. The metal would be enclosed in the epoxy. The epoxy we used years ago conducted heat but I could not find that information on this product. Be careful of your lead dress when assembling.
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