This is a high quality AL Heat Sink(With adhesive tape).There is a high quality of U.S. origin 3M-8810 thermal adhesive tape on the back of the heatsink.
So you needn't coat a layer of heat conduction glue on the heatsink,Just remove the blue protective film on the thermal adhesive tap and then stick in the
desired chip parts.Viscidity is very strong.
Notice: Make sure the surface of the component is clean before sticking the heatsink.
This heat sink can be used with stepper motors, motor driver board and so on.
AL Heat Sink(With adhesive tape)-30x30x10mm (1.18x1.18x0.39") x1