EX31 :: EX31 :: Dimension Model No. L x W (mm) Height (mm) Weight (grams) CAD EX 31-10 31 x 31 9.8 10.0 By request Material : Aluminum 6063 Finish : Black anodize Remarks : Model number EX31-10 indicate 31x31mm is package footprint and 10 mm is overall height , all the dimensions are in arithmetic , the drawing overall height is real dimensionn :: Rth ( oC/W ) :: Air Velocity / Rth ( oC/W ) 200(LFM) 400(LFM) 600(LFM) 200(LFM) 400(LFM) 600(LFM) EX 31-10 6.48 5.15 4.30