HC23 – Malico Inc. Home » Passive Heat Sink » HC Series » HC23 – Malico Inc. :: HC 23 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD HC 23-06 23 x 23 6.3 13.7 By request HC 23-10 23 x 23 9.5 17.8 By request Material : Copper 1100 Finish : Anti-Oxidation Remarks : Model number HC 23-06 indicate 23x23mm 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 23-06 5.69 4.22 3.56 HC 23-10 4.94 3.62 3.00