SO 20

Package Outline Dimensions
SO-20
D
Ø
R
R1
L1
Ø1
Index
E1
Ø2
E
L
A3
A1
Ø3
c
A2
Seating Plane
e
Ø4
A
b
Dim
A
A1
A2
A3
b
c
D
E
E1
e
L
L1
R/R1





SO-20
Max
Typ
2.65
2.52
0.30
0.20
2.55
2.35
1.10
1.00
0.49
0.32
12.80
12.70
10.60
10.20
7.60
7.50
1.27 BSC
0.50
1.27
0.80
1.35 REF
0.07
0
8
10
14
12
6
10
8
9
14
11.5
6
10
8
All Dimensions in mm
Min
2.35
0.10
2.05
0.90
0.35
0.23
12.60
10.00
7.40
Suggested Pad Layout
SO-20
Y
Dimensions
Y1
C
G
X
Y
Y1
G
X
Value
(in mm)
1.27
8.00
0.60
1.50
11.00
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.
2015-06-05
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Package Outline Dimensions
Suggested Pad Layout
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