DQS Electronic Co., Limited
| Payment Terms | T/T |
| Layer | 8 Layer |
| Material | Fr4 |
| Thickness | 2.5mm |
| Copper Thickness | 4OZ |
| Surface Treatment | ENIG |
| Min. Line Width/Space | 0.2/0.2mm |
| Application | Electronic Products |
| Certificate | UL,IATF16949,ISO&Reach |
View Detail Information
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Product Specification
| Payment Terms | T/T | Layer | 8 Layer |
| Material | Fr4 | Thickness | 2.5mm |
| Copper Thickness | 4OZ | Surface Treatment | ENIG |
| Min. Line Width/Space | 0.2/0.2mm | Application | Electronic Products |
| Certificate | UL,IATF16949,ISO&Reach | ||
| High Light | Heavy Copper 94v 0 circuit board ，4OZ 94v 0 circuit board ，4OZ pcb manufacturing service | ||
4OZ Heavy Copper PCB with 2.5mm PCB Board Thickness
♦ What is Heavy Copper PCB?
A Heavy Copper PCB is a specialized printed circuit board that uses exceptionally thick copper layers (typically ≥ 3 oz/ft², up to 20 oz/ft² or more) for high-current, high-power, or high-thermal applications. Unlike standard PCBs (which use 1-2 oz copper), heavy copper PCBs can handle extreme electrical loads, heat dissipation, and mechanical stress.
♦ Features of Heavy Copper PCB
✅ High Current Capacity – Supports 10A–100A+ per trace (vs. ~1–5A in standard PCBs).
✅ Enhanced Heat Dissipation – Reduces hotspots by spreading heat through thick copper planes.
✅ Strong Mechanical Structure – Resists thermal expansion, vibration, and warping.
✅ Space Efficiency – Fewer layers needed compared to parallel traces in standard PCBs.
✅ High Reliability – Ideal for harsh environments (industrial, automotive, aerospace).
♦ Heavy Copper PCB vs. Standard PCB
| Parameter | Heavy Copper PCB | Standard PCB |
|---|---|---|
| Copper Thickness | 3 oz – 20+ oz/ft² | 0.5–2 oz/ft² |
| Current Handling | 10A–100A+ | <5A |
| Thermal Performance | Excellent | Moderate |
| Cost | Higher (complex manufacturing) | Lower |
| Typical Applications | Power electronics, motor drives | Consumer electronics, low-power devices |
Heavy Copper PCBs are essential for high-power, high-reliability applications where standard PCBs would fail. They excel in thermal management, current handling, and durability, making them ideal for industries like automotive, aerospace, and industrial automation.
Need a Heavy Copper PCB quote? Let me know your specs (current rating, layers, material), and I can recommend the best manufacturers!
♦ Technical Parameters
Company Details
Business Type:
Manufacturer
Employee Number:
>800
Ecer Certification：
Verified Supplier
DQS Electronic is located in Shenzhen, focusing on PCB Layout Design, PCB Fabrication, Electronic Components Sourcing, SMT, PCB Assembly and Testing. We are a one-stop EMS electronic manufacturing company committed to providing global customers with rapid prototyping and mass production. Our produ... DQS Electronic is located in Shenzhen, focusing on PCB Layout Design, PCB Fabrication, Electronic Components Sourcing, SMT, PCB Assembly and Testing. We are a one-stop EMS electronic manufacturing company committed to providing global customers with rapid prototyping and mass production. Our produ...
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