FR4 vs. Aluminum PCB using in automotive lights
Price Comparison
In the cost comparison, the Aluminum PCB is much more pricey than FR4, along with even more remarkable in performance.
Thermally Conductivity Comparison
Light weight aluminum PCB has a terrific capability of thermally conductivity compared to FR4 makings them play a vital role on LED lights innovation.
Innovation Practices
The thermal conductivity dielectric product of Aluminum PCB is a thermal bridge that links the parts and steel plate. It could move warmth to the warm sink via the core instantly. An Aluminum backed PCB is constructed with light weight aluminum support, highly thermally conductive dielectric layer and also standard circuit layer. The circuit layer is a thin PCB bonding to the light weight aluminum support.
As for FR4 PCB, it takes typical machining methods: boring, routing, v-scoring, countersink counterbore. So it needs an additional warm sink to perform warmth in from the circuit layer. Or it will certainly a prospective damaging hotspots.