Package Outline Dimensions TSSOP-20EP D X E1 E Y PIN 1 ID MARK e 0.25 Gauge Plane A2 A b Seating Plane L A1 L1 TSSOP-20EP Dim Min Max Typ A 1.20 A1 0.025 0.100 A2 0.80 1.05 0.90 b 0.19 0.30 c 0.09 0.20 D 6.40 6.60 6.50 E 6.20 6.60 6.40 E1 4.30 4.50 4.40 L 0.45 0.75 0.60 L1 1.0 REF e 0.65 BSC X 4.191 Y 2.997 θ1 0° 8° All Dimensions in mm DETAIL Suggested Pad Layout TSSOP-20EP C X Dimensions Y1 Y2 Y3 X1 Y C X X1 X2 Y Y1 Y2 Y3 Value (in mm) 0.650 0.420 4.490 6.270 1.780 3.290 4.160 7.720 X2 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. 2015-11-09 1 of 1 www.diodes.com Package Outline Dimensions Suggested Pad Layout © Diodes Incorporated