A 3OZ Thick Copper Coil Plate PCBA is a specialized printed circuit board assembly designed for high-current and high-frequency applications, such as power converters, RF systems, and electric vehicle (EV) charging modules. Featuring 3 oz (105 µm) copper layers, it delivers superior current-carrying capacity (15–20A/mm²) and minimizes resistive losses in planar or embedded coil designs. Built on high-Tg FR4 or metal-core substrates, this PCBA ensures mechanical stability and efficient heat dissipation under extreme temperatures (-40°C to +125°C). Key manufacturing techniques include resin-filled vias and thermal vias to enhance thermal performance, while ENIG surface finish ensures corrosion-resistant solder joints. Compliant with IPC-6012 Class 3 and RoHS, it is ideal for renewable energy systems, industrial motor drives, and telecom infrastructure, offering reliability in harsh environments and high-power-density designs.
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