Advantages and applications of Aluminum PCB

Advantages and applications of Aluminum PCB


Aluminum pcb boards are one of the most thermally conductive PCB options. They keep as much heat away from vital components as possible to ensure minimal circuit damage. Thanks to their high heat tolerance, they can handle higher density circuits and larger power levels. Substrates created from aluminum alloys have a high level of physical durability that lowers the risk of breakage. Compared to other metals, aluminum has a lower environmental impact in addition to a reasonable cost.

On the other hand, aluminum PCBs tend to have more niche uses than standard boards. While they cost less than adding conductors to a copper board, they have a higher price than standard PCBs without those components. Investing in an aluminum core may not pay off if your application doesn’t involve high temperatures. If you plan on creating a flex circuit, an aluminum flex PCB can only flex into its initial position. It will bend to fit into smaller electronics.


1.Low Cost: Aluminum is a metal that can be found in a variety of climates, so it is easy to mine and refine. Therefore, the costs of doing so are significantly lower than other metals. In turn, this means that manufacturing products with these metals are less expensive as well.

2.Heat Dissipation: High temperatures can cause severe damage to electronics, so it is wise to use a material that can help dissipate heat. Aluminum can actually transfer heat away from vital components, thus minimizing the harmful effect it could have on the circuit board.

3.Higher Durability: Aluminum provides strength and durability to a product that ceramic or fiberglass bases cannot. Aluminum is a sturdy base material that can reduce accidental breakage during manufacturing, handling, and everyday use.

4.Environmentally Friendly: Aluminum is non-toxic and recyclable. Manufacturing with aluminum is also conducive to conserving energy due to its ease of assembly. For printed circuit board suppliers, using this metal helps maintain the health of our planet.

5.Lightweight: For its incredible durability, aluminum is a surprisingly lightweight metal. Aluminum adds strength and resilience without adding on any additional weight.

Performance of Aluminum PCB

1. Thermal Dissipation

Common PCB substrates, such as FR4, CEM3 are poor conductors of thermal. If the heat of electronic equipments cannot be distributed in time, it will result in high temperature failure of electronic components. Aluminum substrates can solve this thermal dissipation problem.

2. Dimensional Stability

Aluminum substrate printed circuit board has apparently higher stability than the insulating material of the printed circuit board. When heated from 30 ° C to 140 ~ 150 ° C, the dimensional change of aluminum substrate is only 2.5 ~ 3.0%.

3. Thermal Expansion

Aluminum substrate PCB can effectively solve the thermal dissipation problem, so that the thermal expansion and contraction problem of components on printed circuit boards with different substances can be alleviated, which improves the durability and reliability of whole machine and electronic equipments. In particular, aluminum substrate can solve the SMT (surface mount technology) thermal expansion and contraction problems.

4. Other Performance

Aluminum substrate printed circuit board has shielding effect, and can alternative brittle ceramic substrate. Aluminum substrate also helps to improve the heat resistance and physical properties and reduce production costs and labor.

Applications of Aluminum PCB

Aluminum base has good thermal dissipation function. Because the LED will generate a lot of heat, the printed circuit board for the LED lamp is generally aluminum substrate. 

1. Industrial vehicles: ignition, voltage regulator, automatic safety control system, lighting conversion system.

2. Aluminum pcb led (two modes: LED display; display with LED light source)

3. Communication electronic equipments: high-frequency amplifiers, filter electrical circuit.

4. Electronic control: relays, transistor base, a variety of components in the circuit.

5. Computer: power supply device, floppy disk drive, motherboard and so on.

6. Power modules: inverters, solid relays, rectifier bridges and so on.

7. Office automatic equipments: motor driver and so on.

8. Switches, microwave: radiator, semiconductor devices, thermal insulation and motor controller.

9. Audio equipments: input and output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers and so on.

10. Power supply equipments: stabilizer, conditioner, DC-AC adapter and so on.

11. Lighting: With the promotion of energy-saving lamps, a variety of energy-saving LED lights are welcomed by the market, so the aluminum substrates for LED lights have large-scale applications.

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