MPC45 – Malico Inc. Home » Passive Heat Sink » MPC Series » MPC45 – Malico Inc. :: MPC45 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD MPC 45-12 45 x 45 11.6 68.8 By request MPC 45-15 45 x 45 14.6 78.0 By request MPC 45-18 45 x 45 17.6 87.3 By request MPC 45-21 45 x 45 20.6 96.5 By request MPC 45-23 45 x 45 22.6 102.7 By request MPC 45-28 45 x 45 27.6 118.1 By request MPC 45-33 45 x 45 32.6 133.5 By request Material : Copper 1100 Finish : Anti-Oxidation Remarks : Model number MPC45-12 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) MPC 45-12 2.67 1.66 1.19 MPC 45-15 2.44 1.44 1.00 MPC 45-18 2.21 1.23 0.84 MPC 45-20 2.02 1.06 0.71 MPC 45-23 1.82 0.92 0.59 MPC 45-28 0.60 0.78 0.49 MPC 45-33 1.42 0.63 0.39