Single-layer Aluminum PCB with 1.0-2.0 W/m*K Thermal Conductivity and 1-4 oz

Product Specification

Product Description

A single-layer aluminum PCB is a metal-core printed circuit board in which a single copper circuit layer is bonded to an aluminum substrate through a thin, thermally conductive dielectric layer. Compared with a standard FR4 board, this structure removes heat from heat-generating components — LEDs, power transistors, MOSFETs — into the aluminum base many times faster, keeping junction temperatures low and extending product lifetime.

Huayihai's standard single-layer aluminum PCB is the most widely used and most cost-effective thermal-management solution in our aluminum PCB family. It combines 1–4 oz copper, a 75–100 µm dielectric with 1.0–2.0 W/m·K thermal conductivity, and a 1.0–1.5 mm aluminum base, giving an excellent balance between thermal performance, mechanical strength, and price. Boards are finished to your requirements with HASL, ENIG, OSP, or immersion silver, and can be supplied in panel form for automated SMT assembly at our one-stop PCBA facility.

Every board is produced under ISO 9001, ISO 13485, and IATF 16949 quality systems, is RoHS compliant, and carries UL certification — making it suitable not only for commercial LED products but also for automotive and medical-grade projects that require documented quality assurance.

Key Features

• Excellent heat dissipation: the aluminum base acts as a built-in heat spreader, pulling heat away from components 5–10× faster than FR4 and dramatically reducing LED junction temperature and light decay.
• Thermally conductive dielectric: 75–100 µm insulation layer with 1.0–2.0 W/m·K thermal conductivity and breakdown voltage ≥2 kV, balancing heat transfer and electrical isolation.
• Heavy copper capability: 1–4 oz copper supports high-current circuits on a single layer without excessive trace widths.
• Mechanical stability: the aluminum substrate provides a rigid, flat, dimensionally stable platform — no warping during reflow, ideal as both circuit board and mounting/heat-sink surface.
• Lighter and cheaper than heat-sink solutions: replaces board + insulating sheet + metal heat sink assemblies with one integrated board, reducing assembly cost, weight, and thickness.
• Long LED lifetime: lower operating temperature extends LED life to 50,000+ hours and maintains high lumen maintenance (LM-80 friendly designs).
• Environmental durability: aluminum base resists moisture absorption and works reliably across –40 °C to +130 °C operating range.
• One-stop service: combine bare-board fabrication with SMT/through-hole assembly, component sourcing, and functional testing.

Manufacturing Capabilities

Applications

Why Choose Us

• Manufacturer since 2005 — Huayihai Technology Co., Ltd. has produced PCBs and PCBAs for 20+ years for customers in industrial, medical, communications, IoT, and automotive markets.
• Full certification coverage — ISO 9001 (quality), ISO 13485 (medical), IATF 16949 (automotive), RoHS, and UL Certification, so one supplier can serve commercial, automotive, and medical projects.
• One-stop PCBA — fabricate the aluminum board, source components, run SMT/through-hole assembly, and perform functional testing; you receive finished, tested modules.
• Real engineering support — free DFM review of your Gerbers, thermal-layout suggestions (thermal vias under thermal pads, copper area under LEDs), and material recommendations matched to your wattage.
• Fast and reliable delivery — 5–7 day prototypes, 100% electrical testing, vacuum-sealed ESD-protected packaging, and flexible FOB/CIF/DDU/DDP shipping.
• Flexible payment for global buyers — T/T, L/C, D/P, D/A, and Western Union accepted.
• Low MOQ, high volume capability — from a few prototype panels to mass production with stable, documented quality.

FAQ

A: Gerber files (RS-274X or ODB++), a stackup or specification sheet (board thickness, copper weight, thermal conductivity, surface finish), and quantity. If you only have a rough idea, send us your circuit requirements and our engineers will propose a stackup for you.

A: For general LED lighting and low-to-medium power, the standard 1.0–2.0 W/m·K dielectric is sufficient and most economical. For high-power LEDs (≥1 W per chip in dense arrays), automotive, or power modules, we recommend our high-thermal-conductivity aluminum PCB (2.0–3.0 W/m·K) — see our separate product page.

A: There is no strict MOQ for prototypes — 1–10 pcs is acceptable. For mass production, economical pricing generally starts from around 1 m² or 500 pcs, but small batch orders are always welcome.

A: Yes. As a one-stop PCBA factory we handle SMT, through-hole, and mixed assembly on aluminum boards, including component sourcing and functional testing. Panels can be delivered with rails and fiducials ready for automated lines.

A: Every board passes 100% electrical testing (flying probe or fixture-based E-test). We also perform peel-strength tests and can measure thermal impedance or dielectric breakdown on request.

A: Yes. Our factory is certified to IATF 16949 and ISO 13485, with full material traceability and PPAP-level documentation available on request.

A: Prototypes: 5–7 working days; mass production: 10–15 working days after order confirmation. Boards are vacuum-sealed with ESD protection and packed in export cartons, shipped by DHL/FedEx/UPS for samples or air/sea freight for volume orders.

A: Mainly by board size, layer count, copper weight, dielectric class, surface finish, and quantity. Send your Gerber files to get a detailed quotation within 24 hours.