Product Description of 4 Layers 3oz HASL PCB board
Heavy copper does not have a set definition per IPC. However, the industry generally accepts the definition to be the use of 3 ounce copper or higher in inner and/or outer layers of a printed circuit or power distribution board.
Heavy copper PCB can be used for a variety of purposes, including, but not limited to, high power rectifiers, heat dissipation, planar transformers, power convertors, computer, military, electric vehicle charging, power grid switching system, etc
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