Do modern LED lights use thermal vias?

I have a technical question about thermal management with mid-power LED diodes.Do you use thermal vias on the PC board anymore? Either under the LED diode footprint or even around the footprint? Depends on the application limits and cost targets.

October 30, 2023

Aluminium PCBs are quite popular, especially for applications where the total LED quantity and/or power is high (e.g. COBs).

Aluminium is used as the substrate, and the PCB tracks are isolated from it. Different materials are available for different isolation requirements.

This aluminium PCB can be directly attached to the heatsink.

#PCB Materials #LED

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

Oliver Smith

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Why the PCB is cold, but LED bulbs are still hot?

I have a THERMAL problem when designing a power LED ALUMINUM PCB. I have 10 5W UV power LEDs.Coldwater flows through water heat sink continuously. The problem is the PCB is cold, but LED bulbs are still hot? Can anyone give me some advice.

Oliver Smith October 27, 2023

Do modern LED lights use thermal vias?

Oliver Smith

Oliver Smith

What Others Are Asking

Can leaded BGA chips be reflow soldered with lead-free process?

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Why the PCB is cold, but LED bulbs are still hot?

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