Package Outline Dimensions TO263AB (D2PAK) (Type TH) A E c2 L1 01 L4 Ø D 1. A2 50 H 01 L2 02 e b b2 c See Detail B E1a L3 E1 D1 Gauge Plane D1b D1a Seating Plane 0 L E1b A1 Detail B TO263AB (D2PAK) (Type TH) Dim Min Max Typ A 4.40 4.70 4.57 A1 0.00 0.20 0.10 A2 2.59 2.79 2.69 b 0.77 0.90 0.813 b2 1.20 1.36 1.27 c 0.356 0.47 0.381 c2 1.22 1.32 1.27 D 8.60 8.80 8.70 D1 6.60 7.80 7.60 D1a 5.33 6.53 6.33 D1b 4.54 5.74 5.54 e 2.54 BSC E 10.00 10.20 10.10 E1 6.67 7.87 7.67 E1a 4.94 6.14 5.94 E1b 7.06 8.26 8.06 H 14.70 15.50 15.10 L 2.00 2.60 2.30 L1 1.17 1.40 1.27 L2 1.45 1.70 1.55 L3 0.25 BSC L4 2.50 REF θ 0° 8° 5° θ1 5° 9° 7° θ2 1° 5° 3° All Dimensions in mm Suggested Pad Layout X1 Dimensions C X X1 Y Y1 Y2 Y Y2 Value (in mm) 5.08 1.10 10.41 3.50 7.01 15.99 X Y1 C ALL DIMENSIONS ARE NOMINAL VALUES SHOWN IN MILLIMETERS Note: The suggested land pattern dimensions have been provided for reference only, as actual pad layouts may vary depending on application. These numbers may be modified based on user equipment capability or fabrication criteria. A more robust pattern may be desired for wave soldering and is calculated by adding 0.2 mm to the ‘Z’ dimension. For further information, please reference document IPC-7351A, Naming Convention for Standard SMT Land Patterns, and for International grid details, please see document IEC, Publication 97. 2015-06-11 1 of 1 www.diodes.com Package Outline Dimensions Suggested Pad Layout © Diodes Incorporated