MW45 – Malico Inc. Home » Passive Heat Sink » MW Series » MW45 – Malico Inc. :: MW45 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD MW 45-12 45 x 45 11.6 22.8 By request MW 45-15 45 x 45 14.6 25.8 By request MW 45-18 45 x 45 17.6 28.8 By request MW 45-21 45 x 45 20.6 31.8 By request MW 45-23 45 x 45 22.6 33.8 By request MW 45-28 45 x 45 27.6 38.8 By request MW 45-33 45 x 45 32.6 43.8 By request Material : Aluminum 6063 Finish : Black anodize Remarks : Model number MW45-12 indicate 45x45mm 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 45-12 2.72 1.78 1.32 MW 45-15 2.42 1.57 1.15 MW 45-18 2.00 1.39 0.99 MW 45-21 2.00 1.22 0.85 MW 45-23 1.79 1.08 0.74 MW 45-28 1.59 0.91 0.60 MW 45-33 1.32 0.73 0.45