MW33 – Malico Inc. Home » Passive Heat Sink » MW Series » MW33 – Malico Inc. :: MW33 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD MW 33-12 33 x 33 11.6 10.8 By request MW 33-15 33 x 33 14.6 11.9 By request MW 33-18 33 x 33 17.6 13.1 By request MW 33-21 33 x 33 20.6 14.3 By request MW 33-23 33 x 33 22.6 15.0 By request MW 33-28 33 x 33 27.6 17.0 By request MW 33-33 33 x 33 32.6 18.9 By request Material : Aluminum 6063 Finish : Black anodize Remarks : Model number MW33-12 indicate 33x33mm 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 33-12 3.23 2.09 1.73 MW 33-15 2.97 1.88 1.54 MW 33-18 2.69 1.70 1.37 MW 33-21 2.50 1.52 1.22 MW 33-23 2.30 1.37 1.08 MW 33-28 2.08 1.23 0.98 MW 33-33 1.89 1.08 0.86