MPA31 – Malico Inc. Home » Heat Sink with Talon Clip » MPA Series » MPA31 – Malico Inc. :: MPA31 :: Dimension Model No. Height (mm) Thickness (mm) Weight (grams) CAD Attachment MPA 31-12 11.6 2.6 12.0 By request Clip , Tape MPA 31-15 14.6 2.6 13.1 By request Clip , Tape MPA 31-18 17.6 2.6 14.1 By request Clip , Tape MPA 31-21 20.6 2.6 15.2 By request Clip , Tape MPA 31-23 22.6 2.6 16.0 By request Clip , Tape MPA 31-28 27.6 2.6 17.6 By request Clip , Tape MPA 31-33 32.6 2.6 19.3 By request Clip , Tape Material : Aluminum 6063 Finish : Black anodize Remarks : Model number MPA31-12 indicate 31x31mm 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) MPA 31-12 3.84 2.43 1.82 MPA 31-15 3.53 2.21 1.60 MPA 31-18 3.26 2.02 1.41 MPA 31-21 3.03 1.84 1.25 MPA 31-23 2.78 1.67 1.14 MPA 31-28 2.53 1.46 0.98 MPA 31-33 2.33 1.34 0.90