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.

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.

 

Read More: Choosing the Right PCB Laminate Material for Your Project

#PCB Materials #LED

Oliver Smith

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

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.

What Others Are Asking

Why should we bake bare PCB?

The assembly note states: Bake bare PCBs in a clean and well ventilated oven prior to assembly at 125*C for 24 hours. Why is this necessary?

How much larger should a plated-through hole be than lead diameter to get good solder wetting?

I’m designing a new PCB where I have a whack of connectors that have to line up with the metalwork. There are some problematic connectors. All 4 pins are round. I want to have the holes as small as possible while allowing for good solder adhesion over the full length of the pin. I’m looking for guidance on how much clearance around the component lead I should have in order to get good solder wetting and adhesion.

How fast can through hole PCBs run?

I’m trying to rate the speed of my pathetic attempts at electronics. So sticking specifically to through hole construction with DIP packages. A soldered PCB like mine can operate at 5MHz. Mine is slower. Why?

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