Heavy Copper PCB vs High Frequency PCB

May 12, 2022

Are you confused about the difference between heavy copper PCB and high frequency PCB? Don't worry, you're not alone. They both have their own unique properties and both have their advantages and disadvantages.

In this blog post, we'll compare heavy copper PCB and high frequency PCB and provide you with a factual and unbiased comparison.

Heavy Copper PCB:

Heavy copper PCBs are a type of printed circuit board with a copper thickness of 3 oz/ft² or more. The thickness of copper is the main advantage of heavy copper PCBs. The high copper thickness can handle higher current loads and reduce voltage drop.

They are widely used in many industrial applications where high power levels are needed or where high temperatures are generated. They are often used in automotive and military applications.

Advantages of heavy copper PCBs:

  • Can handle higher current loads
  • Reduced voltage drop
  • Improved thermal conductivity
  • Improved mechanical strength
  • Better reliability

Disadvantages of heavy copper PCBs:

  • Higher cost
  • Difficult to design and manufacture
  • Limited availability

High Frequency PCB:

High frequency PCBs are a type of printed circuit board designed for high frequency applications. They are used in applications where signals are more than 1 GHz. High frequency PCBs can handle faster signals and are designed to reduce signal loss, interference and EMI/RFI.

High frequency PCBs are used in applications where they need to operate from 1 GHz to above 100 GHz, such as in 5G networks or in radar and military applications.

Advantages of high frequency PCBs:

  • Reduced signal loss
  • Reduced interference
  • Improved EMI/RFI shielding
  • Lower cost compared to heavy copper PCBs

Disadvantages of high frequency PCBs:

  • Can't handle high power levels
  • Limited material selection
  • Tighter manufacturing specifications

Conclusion:

Both heavy copper PCBs and high frequency PCBs are designed for specific applications. Heavy copper PCBs are ideal for high power applications, while high frequency PCBs are ideal for high-frequency applications.

When deciding which type of PCB to choose, it's important to consider the specific requirements of your application. If you need a PCB that can handle high power or is thermally conductive, then heavy copper PCBs are the way to go. For applications that require high frequencies, low losses, and better EMI/RFI shielding, high frequency PCBs are the best.

In summary, the choice between heavy copper PCB and high frequency PCB comes down to your specific application requirements. We hope this comparison has helped you choose the right type of PCB for your next project.

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