Metal Core PCB Materials and Thickness
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The metal core of the thermal PCB can be aluminum (aluminum core PCB), copper (copper core PCB or a heavy copper PCB) or a mixture of special alloys. The most common is an aluminum core PCB. Other materials, like brass or steel, are sometimes requested but are not recommended. The metal PCB materials are very hard and cutting the PCB into smaller pieces can pose problems. Other considerations in selecting metal PCB materials are the chemicals in manufacturing and if the metal will react to them.
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The thickness of metal cores in PCB base plates is typically 30 mil - 125 mil, but thicker and thinner plates are possible.
Metal Core PCB copper foil thickness can be 1 - 10 oz.
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