HC42.5 – Malico Inc. Home » Passive Heat Sink » HC Series » HC42.5 – Malico Inc. :: HC 42.5 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD HC 42.5-06 42.5 x 42.5 6.3 52.6 By request HC 42.5-10 42.5 x 42.5 9.5 70.0 By request Material : Copper 1100 Finish : Anti-Oxidation Remarks : Model number HC 42.5-06 indicate 42.5×42.5mm is package footprint and 6 mm is overall height , all the dimensions are in arithmetic , the drawing overall height is real dimension :: Rth ( oC/W ) :: Air Velocity / Rth ( oC/W ) 200(LFM) 400(LFM) 600(LFM) HC 42.5-06 3.10 1.96 1.49 HC 42.5-10 2.57 1.53 1.13