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Aluminum PCBs

Metal core printed circuit boards with aluminum substrate for superior thermal management in high-power and high-brightness applications.

Thermal Management PCB Solutions

Aluminum PCBs (also known as Metal Core PCBs — MCPCB) are engineered to solve the most challenging thermal dissipation problems. By bonding a copper circuit layer to an aluminum substrate through a thermally conductive dielectric, heat is rapidly transferred away from critical components.

Compared to standard FR-4 boards, our Aluminum PCBs achieve 8-10x better heat dissipation, dramatically extending LED lifespan and enabling higher power densities in compact designs. We offer multiple dielectric thicknesses and thermal conductivities to match your specific cooling requirements.

  • Thermal conductivity: 1.0 - 10.0 W/m·K (custom dielectric options)
  • Aluminum core thickness: 0.5mm - 10.0mm (5052, 6061, 6063 alloys)
  • Copper layer: 1oz - 12oz on circuit side
  • Available in single-sided, double-sided, and multilayer MCPCB
  • Surface finishes: HASL, ENIG, OSP, Immersion Tin, Immersion Silver
  • High Tg dielectric for lead-free soldering compatibility
  • Excellent dimensional stability over temperature range
  • UL 94V-0 flame retardant and RoHS compliant

Technical Specifications

Thermal Properties

  • Thermal Conductivity: 1.0 - 10.0 W/m·K
  • Dielectric Thickness: 25μm - 200μm
  • Breakdown Voltage: 3000V-6000V AC
  • Operating Temp: -40°C to +150°C (standard)
  • Thermal Resistance: 0.4°C/W - 2.0°C/W
  • Peak Solder Temp: 260°C / 30s (lead-free)

Mechanical Specifications

  • Core Material: Aluminum 5052 / 6061 / 6063
  • Core Thickness: 0.5mm - 10.0mm
  • Copper Thickness: 1oz - 12oz
  • Min Track/Spacing: 0.15mm / 0.15mm
  • Min Drill: 0.3mm (mechanical)
  • Max Panel Size: 600mm × 800mm

Electrical Properties

  • Dielectric Constant (Dk): 3.5 - 5.0 @ 1MHz
  • Dissipation Factor (Df): 0.02 - 0.04 @ 1MHz
  • Insulation Resistance: 10¹² Ω (min)
  • Surface Resistivity: 10¹³ Ω (min)
  • CTI (Comparative Tracking Index): 600V+
  • Impedance Tolerance: ±10%

Quality & Compliance

  • Certification: UL 94V-0, ISO 9001:2015
  • Standards: IPC-6012 Class 2/3
  • Electrical Test: 100% flying probe
  • Thermal Cycling: -40°C to +125°C, 1000 cycles
  • Peel Strength: >1.0 N/mm after thermal stress
  • RoHS / REACH: Fully compliant

Key Advantages of Aluminum PCBs

Superior Heat Dissipation

8-10x better thermal performance than standard FR-4 boards, effectively drawing heat away from high-power components and reducing operating temperatures by 30-50°C.

LED & Lighting Optimized

Specifically designed for high-brightness LEDs. Thermal management extends LED lifespan from 30,000 to 50,000+ hours while maintaining consistent color output.

Lightweight & Durable

Aluminum provides excellent mechanical strength and rigidity at a fraction of the weight of copper-based MCPCBs, ideal for portable and weight-sensitive applications.

Cost-Effective Thermal Solution

Eliminates the need for bulky heat sinks and active cooling fans, reducing system cost, assembly complexity, and overall bill of materials.

EMI Shielding

The aluminum core provides natural electromagnetic interference (EMI) shielding, reducing noise pickup and improving signal integrity in sensitive circuits.

High Power Density

Enables compact designs with higher power densities by efficiently managing thermal loads, allowing for smaller form factors without compromising reliability.