This heat sink mainly consists of two parts: a flat base plate at the bottom and densely arranged cooling fins on the top. The heat sink shown in the picture adopts a design with multiple groups of parallel and well-arranged fins (similar to a stepped or comb-tooth shape), which greatly expands the contact area with air. Mounting holes are reserved on the bottom to secure it firmly to heat-generating electronic components.
Material: It is generally manufactured from aluminum alloys (grades such as 6063 and 6061) via extrusion molding. Aluminum alloys feature excellent thermal conductivity, light weight, low cost, and easy processing into complex shapes. Its silvery metallic luster indicates that it may have undergone surface treatments like anodizing to boost corrosion resistance and wear resistance.