The aluminum based (metal-based heat sink) is a low-alloyed Al-Mg-Si series high plastic alloy plate.
It has good thermal conductivity, electrical insulation performance and mechanical processing performance.
Compared with FR-4, the aluminum substrate can carry higher current with the same thickness and the same line width.
The aluminum substrate can withstand voltage up to 4500V and the thermal conductivity is greater than 2.0. In the industry, aluminum substrates are the mainstay.
Mainly used in LED daily and industrial lighting, light bar display, LED/OLED.