MW25 – Malico Inc. Home » Passive Heat Sink » MW Series » MW25 – Malico Inc. :: MW25 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD MW 25-12 25 x 25 11.6 6.6 By request MW 25-15 25 x 25 14.6 7.4 By request MW 25-18 25 x 25 17.6 8.2 By request MW 25-21 25 x 25 20.6 9.0 By request MW 25-23 25 x 25 22.6 9.6 By request MW 25-28 25 x 25 27.6 10.9 By request MW 25-33 25 x 25 32.6 12.3 By request Material : Aluminum 6063 Finish : Black anodize Remarks : Model number MW25-12 indicate 25x25mm is package footprint and 12 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) MW 25-12 4.41 3.11 2.58 MW 25-15 4.02 2.77 2.32 MW 25-18 3.68 2.52 2.05 MW 25-21 3.41 2.33 1.88 MW 25-23 3.18 2.18 1.76 MW 25-28 2.87 1.95 1.57 MW 25-33 2.60 1.71 1.41