4 Layer Heavy Copper PCB

4 Layer Heavy Copper PCB

This 4 layer heavy copper PCB is designed for high-current and high-power electronic applications where standard copper thickness may not provide sufficient current carrying capacity or thermal performance.

The PCB uses 175μm copper thickness and can support copper weights up to 6oz. The multilayer structure provides separate routing and power distribution layers while maintaining a compact board configuration.

It can be used in power electronics, industrial equipment, EV charging systems, motor drives, inverters and other applications requiring reliable high-current PCB performance.

175μm Copper Thickness and 6oz Copper

The PCB features 175μm copper thickness, equivalent to approximately 5oz copper, with configurations available up to 6oz depending on the board design.

The increased copper thickness helps reduce electrical resistance and improve current carrying capability. It can also assist with heat dissipation in high-power circuits.

Heavy copper construction is particularly useful for power paths, high-current traces and areas exposed to higher thermal loads.

Multilayer PCB Construction

The 4 layer structure provides additional routing space compared with a conventional 2 layer PCB.

Power, ground and signal circuits can be arranged on different layers according to the electrical and mechanical requirements of the application.

The board can be manufactured using FR-4 and other suitable PCB materials depending on the required temperature, electrical and mechanical performance.

High-Current and High-Power Applications

Heavy copper construction makes this PCB suitable for applications where high current flows through the board.

Typical applications include power supplies, motor controllers, inverters, EV charging equipment, battery systems and industrial power electronics.

The actual copper thickness, trace width, via structure and thermal design should be selected according to the required current and operating conditions.

Thermal Performance

The increased copper thickness provides additional thermal conduction paths within the PCB.

For high-power designs, copper areas can be combined with appropriate thermal vias, heat sinks and other thermal management structures to help transfer heat away from power devices.

The final thermal performance depends on the board construction, copper distribution, components and operating environment.

PCB Manufacturing Capability

The heavy copper PCB can be manufactured with board thicknesses from approximately 0.8mm to 6.0mm.

For heavy copper layers, the specified minimum line width and spacing can reach approximately 6mil/6mil depending on the copper thickness and production requirements.

The minimum hole size can be approximately 0.30mm, subject to the specific board structure and manufacturing process.

Different surface finishes can be selected according to the application and assembly requirements.

Applications

Power Electronics

Used for high-current power conversion, power distribution and power management equipment where increased copper thickness is required.

EV Chargers and Charging Equipment

Suitable for charging equipment and related power electronics requiring high-current PCB traces and improved thermal performance.

Motor Drives and Inverters

The PCB can be used in motor control systems, inverters and other equipment where power switching circuits generate significant current and heat.

Battery Management Systems

Heavy copper PCB construction can be used in battery-related equipment for high-current paths and power distribution.

Renewable Energy Equipment

Suitable for selected solar power, energy storage and other renewable energy equipment requiring high-current PCB structures.

Industrial Equipment

The PCB can be integrated into industrial power supplies, welding equipment, automation equipment and other high-power electronic systems.

Automotive Electronics

Heavy copper multilayer PCBs can be used in automotive power electronics and other systems requiring reliable current carrying capability.

Telecommunication Equipment

The board can also be used in power supply and power distribution sections of telecommunication and network equipment.

Technical Specifications

Heavy Copper PCB for High-Current Applications

The 4 layer 175μm 6oz heavy copper PCB provides a combination of multilayer routing, increased copper thickness and high-current capability for demanding electronic designs.

It is suitable for power electronics, EV charging equipment, motor drives, inverters, battery systems and industrial equipment where PCB current capacity and thermal performance are important design considerations.