Smart HeatSinks® offers the patented, super easily assembly and disassembly CaM-clip System (CMS) heat sink which requires no fixtures, jigs and tools to assemble devices onto the heat sink. The new heat sink comprises a heat sink body with extruded or brazed convoluted fins and an integral cam spring clip which has an auto-align feature and camming mechanism. This heat sink provides easy assembly and all-in-one solution. It can be used for TO-220, TO-247, TO-264 and TO-218 series power devices with either natural or forced convention cooling. It is the ideal type of heat sink for high power density and small size (1U or 2U) electronic packaging with forced convention cooling.