Aluminium pcb soldering

Soldering on an aluminium PCB requires a bit of extra care and attention compared to traditional FR4 PCBs.

Here are some tips to help you successfully solder on an aluminium PCB:

1. Use a higher temperature soldering iron: Aluminium has a higher thermal conductivity than FR4, which means it can dissipate heat faster. To compensate for this, use a soldering iron with a higher temperature (around 350-400°C) to ensure that the solder melts properly.

2. Use a flux: Aluminium oxide can form on the surface of the PCB and prevent good soldering. Using a flux will help to remove the oxide layer and ensure good solder flow. Apply a small amount of flux to the pads before soldering.


3. Use a lead-free solder: Aluminium is more prone to corrosion than copper, so using a lead-free solder will help to reduce the risk of corrosion over time.

4. Use a soldering mask: A soldering mask can help to protect the PCB from excess heat and prevent solder from flowing where it shouldn’t. Apply a mask to the areas of the PCB where you don’t want solder to flow.

5. Avoid excessive heat: Be careful not to apply too much heat for too long, as this can damage the PCB. Use a soldering iron with a fine tip and work quickly to avoid overheating the PCB.

By following these tips, you should be able to successfully solder on an aluminium PCB.


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