MW19 – Malico Inc. Home » Passive Heat Sink » MW Series » MW19 – Malico Inc. :: MW19 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD MW 19-12 19 x 19 11.6 3.4 By request MW 19-15 19 x 19 14.6 3.7 By request MW 19-18 19 x 19 17.6 4.0 By request MW 19-21 19 x 19 20.6 4.3 By request MW 19-23 19 x 19 22.6 4.5 By request MW 19-28 19 x 19 27.6 5.1 By request MW 19-33 19 x 19 32.6 5.6 By request Material : Aluminum 6063 Finish : Black anodize Remarks : Model number MW19-12 indicate 19x19mm is package footprint and 12 mm is overall height , all the dimensions are in arithmetic , the drawing overall height is real dimension Air Velocity / Rth ( oC/W ) 200(LFM) 400(LFM) 600(LFM) MW 19-12 6.37 4.92 4.26 MW 19-15 5.89 4.48 3.84 MW 19-18 5.45 4.03 3.48 MW 19-21 5.08 3.74 3.15 MW 19-23 4.70 3.46 2.98 MW 19-28 4.21 3.15 2.74 MW 19-33 3.88 2.88 2.54