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Aluminum Core 3.2mm 2-layer PCB: Superior 2W/MK Thermal Solution for High-Power Applications
Aluminum Core 3.2mm 2-layer PCB: Superior 2W/MK Thermal Solution for High-Power Applications
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
1.Introduction:
Aluminum Core PCBs represent a significant advancement in thermal management for modern electronic systems. Designed to address the critical challenge of heat dissipation in high-power applications, aluminum specialized printed circuit boards integrate a metal base layer to efficiently transfer heat away from sensitive components. Our 2-layer aluminum PCB utilizes AL 5052 alloy from Mingtai with 2W/MK thermal conductivity and 3.2mm finished thickness, providing engineers with a reliable solution for applications where conventional FR-4 materials would fail under thermal stress.
The growing demand for compact, high-performance electronics in industries such as LED lighting, automotive systems, and power conversion has driven the adoption of aluminum PCBs. By combining excellent thermal performance with structural durability, these boards enable smaller form factors, increased power density, and enhanced long-term reliability—making them essential for next-generation electronic designs.
2.Key Technical Specifications
Parameter |
Specification |
PCB Structure |
2-layer, Aluminum Core |
Base Material |
AL 5052 (Supplier: Mingtai) |
Thermal Conductivity |
2 W/MK |
Dielectric Thickness |
120 μm |
Finished PCB Thickness |
3.15–3.25 mm |
Finished Copper Weight |
2oz (Outer Copper: 73 μm) |
Hole Wall Plating |
20.5–24 μm |
Solder Mask (Top) |
White (Lanbang W-8), 16–18 μm, 5H Hardness |
Legend (Top) |
Black (Lanbang Thermasetting-08) |
Surface Finish |
Lead-Free HASL |
Panel Size |
100mm × 59mm (1 PC per panel) |
3.Core Technology: Prepreg in Aluminum PCBs
The dielectric layer (Prepreg) is a critical component in aluminum PCBs, serving as both an electrical insulator and a thermal bridge. Key functions include:
Electrical Insulation: Prevents short circuits between the copper circuit and the aluminum base.
Thermal Conductivity: Transfers heat from components to the aluminum substrate efficiently.
Mechanical Stability: Ensures strong bonding between layers and reliable performance under thermal cycling.
Our PCB uses a 120μm Prepreg layer optimized for 2W/MK thermal conductivity, balancing insulation and heat transfer for high-power applications.
4.Key Features & Benefits
1. Superior Thermal Management
2W/MK Thermal Conductivity: Ensures rapid heat dissipation, reducing hotspot risks.
AL 5052 Aluminum Base: Offers excellent thermal and mechanical properties.
2. High Reliability & Durability
2oz Copper Traces: Supports high-current applications with minimal resistive heating.
Lead-Free HASL Surface Finish: Ensures environmental compliance and strong solderability.
5H Hardness Solder Mask: Protects against scratches and mechanical wear.
3. Optimized Design for Manufacturing
Precise Thickness Control: 3.2mm finished thickness with tight tolerances.
White Solder Mask & Black Legend: Provides high contrast for easy assembly and inspection.
5.Typical Applications
LED Lighting: High-power LED modules, street lights, and automotive lighting.
Power Electronics: Power converters, motor drives, and industrial power supplies.
Automotive Systems: Engine control units, LED headlights, and battery management.
Industrial Equipment: High-heat controllers, thermal sensors, and RF amplifiers.
6.Conclusion
Aluminum core 2-layer PCB combines advanced materials, precise manufacturing, and rigorous testing to deliver a reliable, high-performance solution for thermal-critical designs. With global availability and compliance with industry standards, Aluminum AL 5052 alloy PCB is an ideal choice for engineers seeking to enhance thermal management without compromising on electrical performance.
Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen, China, serving customers worldwide.
We are devoted to delivering high-frequency PCB products and solutions of the highest quality, along with customized service. Get in touch with us to start your project !
Visit https://www.bicheng-enterprise.com to learn more.