Aluminum PCB: A Comprehensive Guide for Buyers in 2025
When it comes to high-performance printed circuit boards, Aluminum PCB stands out for its excellent heat dissipation and durability. Widely used in LED lighting, power supplies, and automotive electronics, these boards offer superior thermal management compared to traditional FR4 PCBs. This guide will help you understand the different types, key features, and how to source reliable Aluminum PCB from China in 2025.
How to Find Reliable Aluminum PCB from China in 2025
China remains the global hub for PCB manufacturing, offering competitive pricing and advanced technology. To find trustworthy suppliers:
- Check certifications like ISO 9001, UL, and RoHS
- Review customer feedback and case studies
- Request samples to verify quality
- Compare MOQ (Minimum Order Quantity) and lead times
Top platforms like Alibaba feature verified suppliers with transparent pricing. Look for manufacturers specializing in Aluminum PCB with at least 5 years of experience.
What Buyers Should Know Before Buying Aluminum PCB from China
Key considerations include:
- Thermal conductivity (typically 1.0-3.0 W/m.K)
- Copper thickness (1oz to 4oz common)
- Dielectric layer thickness (75μm to 150μm)
- Surface finish options (HASL, ENIG, OSP)
Always clarify shipping terms (FOB, EXW, CIF) and payment methods (30% deposit common). Quality control reports should be provided for bulk orders.
Types of Aluminum PCB
Three main varieties dominate the market:
- Single-layer Aluminum PCB - Most economical, used in LED lighting
- Double-layer Aluminum PCB - Better for complex circuits
- Multilayer Aluminum PCB - High-end applications like aerospace
Flexible Aluminum PCBs are also gaining popularity for wearable devices.
Functions and features of Aluminum PCB
The aluminum base acts as a heat sink, offering:
- 10x better heat dissipation than FR4
- 50% lighter than copper-core boards
- Excellent mechanical stability
- EMI shielding properties
Typical operating temperature range: -50°C to 150°C. The dielectric layer provides electrical insulation while transferring heat efficiently.
Scenarios of Aluminum PCB
Common applications include:
- LED lighting (80% of street lights use Aluminum PCB)
- Power converters and regulators
- Automotive electronics (especially EV components)
- Medical imaging equipment
- Industrial power systems
A recent case study showed 30% longer lifespan for LED modules using Aluminum PCB versus standard boards.
How to Choose Aluminum PCB
Selection criteria depends on:
- Power requirements - Higher wattage needs thicker copper
- Thermal needs - High-power LEDs require 2.0+ W/m.K
- Environment - Harsh conditions need protective coatings
- Budget - Multilayer costs 2-3x more than single-layer
For most LED applications, 1.5mm thick boards with 1oz copper provide optimal performance.
Aluminum PCB Q & A
Q: What's the lead time for Aluminum PCB from China?
A: Typically 7-15 days for samples, 2-4 weeks for bulk orders.
Q: Can Aluminum PCB be used for high-frequency applications?
A: Yes, but special designs are needed to minimize signal loss.
Q: How does pricing compare to FR4 PCBs?
A: Aluminum PCB costs 20-40% more but offers better longevity.
Q: What's the maximum size available?
A: Most suppliers offer up to 600×450mm, some up to 1200×600mm.
Q: Are there fire safety certifications?
A: Yes, UL94 V-0 is common for flame retardant versions.
