MP42.5 – Malico Inc. Home » Passive Heat Sink » MP Series » MP42.5 – Malico Inc. :: MP42.5 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD MP 42.5-12 42.5 x 42.5 11.6 21.2 By request MP 42.5-15 42.5 x 42.5 14.6 24.0 By request MP 42.5-18 42.5 x 42.5 17.6 26.9 By request MP 42.5-21 42.5 x 42.5 20.6 29.7 By request MP 42.5-23 42.5 x 42.5 22.6 31.6 By request MP 42.5-28 42.5 x 42.5 27.6 36.4 By request MP 42.5-33 42.5 x 42.5 32.6 41.1 By request Material : Aluminum 6063 Finish : Black anodize Remarks : Model number MP42.5-12 indicate 42.5×42.5mm 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) MP 42.5-12 2.85 1.71 1.23 MP 42.5-15 2.62 1.51 1.03 MP 42.5-18 2.38 1.36 0.89 MP 42.5-20 2.19 1.18 0.73 MP 42.5-23 1.99 1.04 0.64 MP 42.5-28 1.80 0.91 0.53 MP 42.5-33 1.48 0.75 0.43