MPCA21 – Malico Inc. Home » Heat Sink with Talon Clip » MPCA Series » MPCA21 – Malico Inc. :: MPCA21 :: Dimension Model No. Height (mm) Thickness (mm) Weight (grams) CAD Attachment MPCA 21-12 11.6 2.6 16.3 By request Clip , Tape MPCA 21-15 14.6 2.6 18.0 By request Clip , Tape MPCA 21-18 17.6 2.6 19.7 By request Clip , Tape MPCA 21-21 20.6 2.6 21.4 By request Clip , Tape MPCA 21-23 22.6 2.6 22.5 By request Clip , Tape MPCA 21-28 27.6 2.6 25.4 By request Clip , Tape MPCA 21-33 32.6 2.6 28.2 By request Clip , Tape Material : Copper 1100 Finish : Anti-Oxidation Remarks : Model number MPCA21-12 indicate 21x21mm 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) MPCA 21-12 5.63 3.98 3.38 MPCA 21-15 5.35 3.73 3.11 MPCA 21-18 5.07 3.44 2.84 MPCA 21-21 4.79 3.22 2.63 MPCA 21-23 4.50 3.00 2.50 MPCA 21-28 4.11 2.74 2.26 MPCA 21-33 3.81 2.55 2.09