HCA31 – Malico Inc. Home » Heat Sink with Talon Clip » HCA Series » HCA31 – Malico Inc. :: HCA 31 :: Dimension Model No. Height (mm) Thickness (mm) Weight (grams) CAD Attachment HCA 31-06 6.3 1.7 26.9 By request Clip , Tape HCA 31-10 9.5 1.7 34.0 By request Clip , Tape Material : Copper 1100 Finish : Anti-Oxidation Remarks : Model number HCA 31-06 indicate 31x31mm 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) HCA 31-06 4.31 3.08 2.48 HCA 31-10 3.68 2.54 1.99