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Metal Core PCB Material: Types, Properties & Applications
Friday, July 25th, 2025

When it comes to managing heat in high-power electronic devices, Metal Core PCBs (MCPCBs) are the go-to solution. These boards use a metal base—typically aluminum or copper—to efficiently dissipate heat for LEDs, power modules, and automotive systems. However, the effectiveness of an MCPCB depends heavily on the material chosen for its core and dielectric layers.

At Best Technology, we specialize in custom MCPCB fabrication using materials from leading global brands like Laird, Bergquist, and Ventec. Whether you need aluminum-based MCPCBs for LED lighting or copper-core boards for power electronics, we offer full support from material selection to prototyping and mass production. In this blog, we will share some information about metal core PCB materials, help you to understand MCPCB from the inside to out.

Metal Core PCB Material: Types, Properties & Applications

What Is Metal Core PCB?

A metal core PCB (MCPCB) is a printed circuit board that uses a metal base instead of traditional fiberglass (FR4). This metal base acts as a heat spreader, drawing heat away from components that generate significant thermal energy during operation.

In a typical MCPCB, the structure includes three key layers:

  • Copper Circuit Layer – for electrical connections.
  • Dielectric Layer – an insulating layer that separates the copper from the metal core, allowing heat transfer but preventing electrical conduction.
  • Metal Core (Base Layer) – typically aluminum, copper, or stainless steel, used to conduct heat away from the board.
Metal Core PCB structure

These PCBs are engineered to handle thermal management more efficiently than standard PCBs. As electronic devices become more compact and powerful, effective heat dissipation becomes more important, and MCPCBs offer a practical solution.

Common Metal Core PCB Materials

There are several options when it comes to metal core PCB material, each with its own unique benefits. The choice depends on factors like thermal requirements, mechanical strength, weight, and budget.

1. Aluminum Core

Aluminum is the most commonly used metal core material in MCPCBs. It is lightweight, cost-effective, and has good thermal conductivity—typically around 205 W/m·K. Aluminum cores are ideal for LED lighting, consumer electronics, and automotive circuits where heat must be dissipated efficiently, but extreme thermal loads are not present. The commonly used aluminum core PCB in Best Technology is 5052, 6061, 3003, here is the datasheet of them:

Property6061 Aluminum5052 Aluminum3003 Aluminum
Material TypeAl-Mg-SiAl-MgAl-Mn
Tensile Strength (MPa)290 – 350190 – 260130 – 200
Yield Strength (MPa)240160 – 200115 – 150
Elongation at Break (%)10 – 1712 – 2015 – 20
Thermal Conductivity (W/m¡K)167138159
Density (g/cmÂł)2.702.682.73
Melting Point (°C)582 – 652607 – 650643 – 657

2. Copper Core

Copper is used where superior heat dissipation is needed. It has excellent thermal conductivity—around 385 W/m·K—and is suitable for high-power applications such as power supplies, industrial equipment, and RF systems. While it offers the best performance in terms of heat transfer, it is also heavier and more expensive than aluminum.

3. Stainless Steel Core

Stainless steel is rarely used, but it can be found in certain niche applications where corrosion resistance and mechanical strength are more important than thermal performance. Its thermal conductivity is much lower, around 16 W/m¡K, making it suitable only for specific use cases.

Metal Core PCB Material Manufacturers

When choosing a metal core PCB manufacturer, it’s important to work with companies that supply high-quality materials and have a track record of consistency and reliability. Below are some of the leading manufacturers of metal core PCB materials that we cooperating:

  • Bergquist (Henkel)
  • Ventec
  • Polytronics (Taiwan)
  • Boyu (China)
  • Laird Technologies
  • Totking (China)
  • Dupont Clamcool
  • XianYang Bode electronic

Why Thermal Conductivity Is Important in MCPCB?

The thermal conductivity of a material refers to the amount of heat it can transfer under stable conditions. Specifically, for a 1-meter-thick material, if the temperature difference between two surfaces is 1°C, and heat transfer occurs through 1 square meter within 1 hour, the quantity of heat transferred is expressed in W/m¡K (watts per meter-kelvin). For practical use, K (kelvin) can often be replaced by °C.

The thermal conductivity value depends on the material’s composition, density, moisture content, and temperature. Materials with lower density or non-crystalline structures tend to have lower thermal conductivity, while materials with higher density and metallic bonding structures transfer heat more efficiently.

Generally, materials with low thermal conductivity are referred to as thermal insulators, and those with a conductivity below 0.05 W/m¡K are called high-efficiency insulation materials. In contrast, metals typically exhibit high thermal conductivity, which makes them ideal for use in metal core PCBs.

Thermal Conductivity of Common Metals Materials

MetalThermal Conductivity (W/m¡K)
Silver429
Copper401
Gold317
Aluminum237
Iron80
Lead67
Zinc34.8

As seen in the table above, silver has the highest thermal conductivity, followed by copper and gold. However, due to cost and practicality, copper and aluminum are the most commonly used metals in MCPCBs. Aluminum strikes a balance between cost, weight, and thermal performance, while copper is chosen for extreme thermal demands.

1W vs 2W vs 3W Thermal Conductivity Differences

When evaluating MCPCB materials, it’s essential to consider not only the core metal but also the thermal conductivity of the dielectric layer. This layer sits between the copper circuitry and the metal base. In the metal core pcb manufacturing, the commonly used dielectric layers are 1W, 2W and 3W.

  • 1W/m¡K: Basic dielectric material, suitable for low-power circuits and LEDs with minimal heat output.
  • 2W/m¡K: Offers moderate thermal performance, ideal for mid-power LEDs and general electronics.
  • 3W/m¡K or higher: Designed for high-power LEDs or circuits that generate significant heat, ensuring efficient transfer to the metal core.

Choosing a higher thermal conductivity dielectric can greatly reduce thermal resistance, leading to better overall cooling performance. But not the higher the better, it should depends on your specific demands.

Aluminum PCB vs Copper Core PCB

When comparing aluminum PCBs and copper core PCBs, the main differences come down to thermal performance, cost, and application needs. Both are types of metal core PCBs (MCPCBs), but they serve different purposes depending on how much heat your circuit generates and how much budget you have.

Aluminum PCB is the most commonly used metal core because it offers a good balance of performance, weight, and affordability. It provides moderate thermal conductivity (around 237 W/m¡K) and is suitable for many applications, especially LED lighting, consumer electronics, and automotive circuits where heat is present but manageable. Aluminum is also lightweight, making it easier to handle and mount, especially in devices where weight matters.

Copper core PCB, on the other hand, offers superior thermal conductivity (around 401 W/m¡K if used directly thermal path technology), nearly double that of aluminum. This allows it to handle more heat, which is crucial in high-power electronics, RF systems, and industrial power converters. However, copper is heavier and more expensive, so it’s typically used only when the highest level of heat dissipation is required.

Can I Use Aluminum PCB in High Power LED Lighting?

Yes, aluminum PCBs are widely used in high-power LED lighting, especially when paired with high thermal conductivity dielectric materials. These boards effectively dissipate heat away from LEDs, preventing overheating and maintaining light output stability.

However, the design must ensure:

  • Adequate heat spreading area
  • Proper thickness of aluminum core (typically 1.0mm to 1.6mm)
  • High-quality dielectric layer with 2W or 3W thermal conductivity

In cases where LEDs generate extreme heat, consider using copper MCPCBs or combining the aluminum core with external heat sinks for better performance.

How to Choose the Right MCPCB Material for LED Projects?

Selecting the correct metal core PCB material for your LED project involves analyzing the following:

  • Thermal Output of LEDs

Higher wattage LEDs generate more heat. For low-power LEDs, aluminum with 1W/m·K dielectric is sufficient. For high-power LEDs, choose aluminum or copper with 2W–3W dielectric.

  • Mechanical Requirements

If the PCB must endure vibration or mechanical stress (e.g., automotive lighting), choose thicker copper for added durability.

  • Budget Considerations

Aluminum offers a cost-effective balance between performance and price. Copper is more expensive and should be reserved for projects where thermal performance cannot be compromised.

  • Weight Constraints

In portable or ceiling-mounted LED systems, lightweight aluminum helps reduce the overall weight of the fixture.

Metal Core PCB Applications

  • LED Lighting: Used in street lights, automotive lights, grow lights, and flood lights to ensure LEDs stay cool.
  • Power Electronics: Found in motor controllers, inverters, and converters to handle large currents and heat.
  • Automotive: Used in ECUs, headlights, and battery systems for reliable performance in harsh environments.
  • Telecommunications: Applied in RF modules, power amplifiers, and antenna systems.
  • Consumer Devices: Used in high-performance audio systems and power adapters.

Best Technology – Your Online Partner in MCPCB Manufacturing

At Best Technology, we specialize in the design and production of metal core PCBs for various industries. Whether you need aluminum or copper-based boards, we deliver customized thermal solutions to meet your specific project needs. By choosing Best Technology, you can enjoy:

  • 99% on-time delivery
  • Highest quality that conforms to IATF16949
  • Factory prices with no MOQ
  • High mixed varieties: aluminum pcb, copper PCB, directly thermal path PCB, ims pcb
  • Multiply surface finish: OSP, HASL, ENIG, ENEPIG
  • Turnkey PCB & PCBA assembly
  • Flexible Production: From prototypes to high-volume manufacturing
  • Free DFM & DFA checks
  • 24/7 online sales

FAQs

Q1: What thickness is standard for aluminum MCPCBs?

Typical thicknesses range from 1.0mm to 1.6mm, depending on mechanical strength and thermal needs.

Q2: Is copper MCPCB worth the extra cost?

Yes, in high-power applications where superior thermal performance is necessary, copper is a valuable investment.

Q3: Can I request a custom thermal analysis?

Absolutely. Best Technology provides thermal analysis and simulation support to ensure the right material choice.

Q4: Are there standard sizes for MCPCB panels?

Yes, but we also offer custom sizes based on your design files and project needs.

Q5: How can I get a quote for metal core PCBs?

Send your Gerber files, project details, and thermal requirements to Best Technology. Our team will respond within 12 hours.

Metal Core Board, Metal Core PCB Manufacturer, No MOQ
Thursday, May 1st, 2025

When you’re in the market for a metal core PCB manufacturer, finding the right one can make a big difference. From ensuring the efficiency of heat dissipation to maximizing performance, metal core PCBs (MCPCBs) offer unique benefits in the world of electronics. As more companies look to enhance their products with these specialized PCBs, the need for a reliable and skilled manufacturer grows.

Best Technology is a metal core PCB manufacturer compliance with ISO9001, ISO13485, IATF16949, AS9100D, UL, REACH, RoHS. With MOQ-free, Best Technology is an original factory for SinkPad PCB, Aluminum PCB Manufacturing. Our competitive edges lie in zero MOQ, 2-3 weeks lead time policy, and 24/7 engineering support. We operate strategically located SMT factories in China and Vietnam, offering full SMT assembly capabilities and mixed assembly advantages. If you need metal core PCB instant quote, welcome to contact us at sales@bestpcbs.com.

Metal Core Board, Metal Core PCB Manufacturer, No MOQ

What Metals Are in Circuit Boards?

When discussing metal core PCBs, it’s essential to understand the types of metals commonly used in their construction. While standard PCBs use materials like fiberglass and copper, metal core PCBs take it a step further by incorporating metals such as aluminum, copper, and steel.

  • Aluminum is the most widely used metal in MCPCBs due to its excellent thermal conductivity, lightweight nature, and cost-effectiveness.
  • Copper is also used for its superior thermal performance, making it ideal for high-performance applications like power electronics and LED lighting.
  • Steel might be used in certain designs for added strength, especially in cases where durability is a top priority.

These materials help in efficiently managing heat, which is critical for ensuring the longevity and reliability of electronic devices. Best Technology offers rigorous quality inspection to metal core board. We assure you that there is no MOQ requirement, and all metal core PCB production is IPC standards compliance.

Metal Core Board

How Are Metal Core Circuit Boards Manufactured?

The metal core PCB manufacturing process is a specialized procedure designed to optimize the thermal conductivity of the board. The general steps involved are:

  • Material Selection‌: Depending on the application, materials like aluminum or copper are chosen for the core layer. These materials are selected based on the need for heat dissipation and cost considerations.
  • ‌Layering‌: The core metal (e.g., aluminum) is coated with a dielectric insulation layer, followed by a copper circuit layer. This structure ensures efficient heat transfer from components to the metal core.
  • Drilling and Plating‌: Holes are drilled through the layers, followed by insulation treatment (e.g., resin filling) to isolate the metal core. Copper plating is then applied to form conductive vias and pathways.
  • Etching‌: The copper layer is etched to create precise circuit traces and pads.
  • Final Testing‌: Rigorous thermal cycling, electrical, and reliability tests are conducted to validate performance under demanding conditions.

The precision and quality of these steps are vital to producing an effective metal core PCB that will perform under challenging conditions.

Metal Core PCB Manufacturer China

China has long been a global leader in PCB manufacturing, and the demand for metal core PCBs has grown alongside the expansion of industries such as automotive, consumer electronics, and LED lighting. The country’s extensive manufacturing capabilities, combined with competitive pricing, make it an attractive destination for companies seeking reliable metal core PCB manufacturers. In this section, we will explore the top metal core PCB manufacturers in China who specialize in delivering high-quality products that meet global standards.

Best Technology

  • Best Technology is one of China’s top PCB manufacturers, with a strong reputation for delivering high-quality metal core PCBs at high quality. Our comprehensive services range from design assistance to full-scale production, catering to industries such as LED lighting, power electronics, and medical devices.
Metal Core PCB Manufacturer

Shenzhen Sesa Tech Co., Ltd.

  • Sesa Tech is a well-established manufacturer of various PCBs, including metal core PCBs. They focus on providing custom solutions for industries like automotive, telecommunications, and consumer electronics. Their production facility is equipped with cutting-edge technology, and they are known for offering efficient turnarounds on high-volume orders.

When looking for a metal core PCB manufacturer in China, these companies provide a combination of cost-effective solutions, advanced technology, and reliable production. Whether you’re aiming for high-volume production or quick prototyping, China remains a key player in the global PCB manufacturing landscape.

Metal Core PCB Manufacturer Bangalore

Bangalore, known as India’s tech hub, is home to a growing number of PCB manufacturers who specialize in metal core PCBs. The city’s robust engineering expertise, coupled with affordable labor costs, makes it an ideal location for sourcing high-quality PCBs. In this section, we’ll highlight some of the leading metal core PCB manufacturers in Bangalore that can meet the needs of various industries such as automotive, aerospace, and LED lighting.

V-Tech PCB

  • V-Tech PCB is a well-established manufacturer in Bangalore, specializing in a wide range of PCB products, including metal core PCBs. With an emphasis on quality control and precision, V-Tech serves industries like automotive, telecommunications, and industrial electronics. Their state-of-the-art manufacturing facility ensures that every PCB meets global standards.

Eagle Circuits

  • Eagle Circuits has been a trusted PCB manufacturer in Bangalore for over a decade. Their metal core PCB offerings are highly regarded for their superior heat dissipation properties, making them ideal for applications such as power electronics and high-power LEDs. Eagle Circuits is known for their flexible manufacturing processes and quick delivery times.

Flextronics

  • Flextronics, a global player in the electronics manufacturing industry, has a significant presence in Bangalore. They offer metal core PCBs for a variety of applications, with a strong focus on innovation and quality. Their experience in producing high-performance PCBs for the automotive and industrial sectors ensures that their products meet stringent specifications.

Bangalore offers a growing number of metal core PCB manufacturers that provide a blend of technical expertise, cost-effective solutions, and quick delivery. Companies looking for reliable and high-quality manufacturers can rely on Bangalore’s rich pool of experienced manufacturers.

Metal Core PCB Manufacturer in Delhi

Delhi, as the capital of India, has emerged as an important hub for PCB manufacturing, including metal core PCBs. The city’s strategic location, coupled with access to a skilled workforce and advanced manufacturing technology, makes it a key destination for companies seeking high-quality PCBs. In this section, we’ll explore some of the top metal core PCB manufacturers in Delhi who offer a wide range of products tailored to industries like automotive, medical devices, and electronics.

PCB Power Market

  • PCB Power Market is a leading PCB manufacturer in Delhi, specializing in both standard and metal core PCBs. They provide high-quality PCBs for a variety of industries, including automotive, lighting, and industrial electronics. Their advanced manufacturing process ensures precision and durability, especially in heat-sensitive applications.

Atotech India Pvt. Ltd.

  • Atotech is a global leader in PCB manufacturing with a significant presence in Delhi. They provide metal core PCBs designed for high-heat applications. Known for their cutting-edge technology and adherence to international quality standards, Atotech serves industries such as medical devices, automotive, and telecommunications.

Deltronics

  • Deltronics is a reputable manufacturer in Delhi known for their metal core PCBs that offer excellent thermal management. They specialize in custom PCBs designed to meet the unique needs of clients, particularly in power electronics and LED applications. Deltronics is committed to delivering high-quality products with fast turnaround times.

Delhi is home to a variety of metal core PCB manufacturers offering high-quality, reliable, and cost-effective solutions for various industries. Whether you are in need of high-performance metal core PCBs for LED applications or power electronics, Delhi manufacturers provide competitive options that meet international standards.

How to Evaluate and Select the Best Metal Core PCB Manufacturer?

Choosing the right metal core PCB manufacturer involves evaluating several key factors:

  • Experience and Expertise: Ensure that the manufacturer has a proven track record in producing MCPCBs for the specific applications you need.
  • Certifications: Look for manufacturers with relevant certifications, such as ISO9001 and IATF16949, which demonstrate a commitment to quality control.
  • Customization: The ability to design and manufacture custom MCPCBs tailored to your specific needs is crucial, especially for complex projects.
  • Cost and Lead Time: Compare prices and lead times between manufacturers to ensure you’re getting the best value without compromising on quality.
  • Customer Service and Support: A reliable manufacturer should offer excellent customer service, including post-production support and assistance with troubleshooting.

Taking the time to consider these factors will ensure that you select the best partner for your metal core PCB needs.

Why Should You Choose Best Technology as Your Metal Core PCB Manufacturer?

When it comes to metal core PCB manufacture, Best Technology stands out as a trusted partner. Here are a few reasons why we are your best choice:

  • Quality: We are committed to the highest standards of quality control. Our metal core PCBs are rigorously tested to ensure that meet the toughest performance requirements.
  • Experience: With years of 18 experience in PCB manufacturing, we understand the complexities involved in producing reliable metal core PCBs that meet your exact specifications.
  • Quick turn-out: We offer quick turn-out solutions without compromising on quality, helping you get high-quality metal-core PCBs while getting quick results. Whether you’re in Europe, the USA, or anywhere else in the market, we provide fast shipping and delivery to meet your deadlines.
  • Customization: We specialize in custom designs tailored to your unique needs, offering a wide range of options for 2-layer aluminum PCBs, flex PCBs, and more.

By choosing Best Technology, you ensure a reliable, high-performance metal-core PCB that enhances the efficiency and longevity of your electronics.

Metal Core PCB Manufacturer, No MOQ

In summary, choosing a metal core PCB manufacturer is an important decision that impacts the performance and longevity of your electronic products. By understanding the manufacturing process, evaluating your options, and considering factors like cost, quality, and customization, you can make an informed choice. With Best Technology, you gain access to top-notch manufacturing expertise, high-quality materials, and customer-centric service that ensures your products meet the highest standards.

If you’re ready to take the next step and discuss your metal core PCB needs, just contact us at sales@bestpcbs.com. Best Technology is here to assist you every step of the way.