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Heavy Copper PCB 3oz to 20oz High Current Carrying Capacity for Power Electronics
Heavy Copper PCB 3oz to 20oz High Current Carrying Capacity for Power Electronics
Specifications
Copper Weight (Outer Layers) :
3oz – 20oz (105μm – 700μm)
Frequency Range :
1GHz – 100GHz
Price :
negotiate
Surface Finish :
ENIG, HASL (lead-free), OSP, Immersion Tin
Delivery Time :
15-30 Days
Brand Name :
Jiaqing Circuit
Payment Terms :
L/C,D/A,D/P,T/T
Material Options :
Rogers (4000/3000 series), PTFE, Arlon, Nelco, Taconic
Current Capacity :
>100A (design dependent)
Certification :
ISO9001
Copper Weight (Inner Layers) :
1oz – 20oz (stackable to 200oz)
Place of Origin :
China
Description

Heavy copper PCB, defined as any board with copper thickness of 3oz (105μm) or greater on any layer, is engineered for high-power applications requiring exceptional current carrying capacity and superior thermal management. With outer layer copper weights ranging from 3oz to 20oz (105μm to 700μm) and inner layers stackable up to 200oz, these boards support currents exceeding 100A while maintaining low electrical resistance and efficient heat dissipation. The robust copper construction minimizes voltage drops, reduces resistive losses, and provides effective heat spreading, making heavy copper PCBs the preferred solution for power supplies, motor drives, welding equipment, and electric vehicle charging systems.

Applications & Key Advantages by Category
Power Supplies & Converters

High current-carrying capacity and low electrical resistance ensure efficient power delivery for AC-DC converters, DC-DC modules, and uninterruptible power supplies (UPS). The heavy copper construction handles elevated currents with minimal temperature rise, extending component life.

Industrial Motor Drives & VFDs

Robust copper traces withstand the high inrush currents and continuous loads of motor control applications. The enhanced thermal dissipation keeps power semiconductors within safe operating temperatures during extended operation.

Electric Vehicle Charging Infrastructure

EV charging stations and onboard battery management systems leverage heavy copper PCBs for high-current power distribution. The 100A+ capability supports fast charging requirements while maintaining reliability under continuous duty cycles.

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Heavy Copper PCB 3oz to 20oz High Current Carrying Capacity for Power Electronics

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Product Detail
Copper Weight (Outer Layers) :
3oz – 20oz (105μm – 700μm)
Frequency Range :
1GHz – 100GHz
Price :
negotiate
Surface Finish :
ENIG, HASL (lead-free), OSP, Immersion Tin
Delivery Time :
15-30 Days
Brand Name :
Jiaqing Circuit
Contact Supplier
Heavy Copper PCB 3oz to 20oz High Current Carrying Capacity for Power Electronics

Shenzhen Jiaqing Circuit Co., Ltd.

Verified Supplier
1 Years
shenzhen
Since 2012
Business Type :
Manufacturer
Main Products :
IC Substrate Board, PCBA, Standard PCB
Total Annual :
20000000-50000000
Employee Number :
201~300
Certification Level :
Verified Supplier
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