
74FST3245
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5
PACKAGE DIMENSIONS
SO–20
DW SUFFIX
CASE 751D–05
ISSUE F
20
1
11
10
B
20X
H
1
C
L
18X
A1
A
SEATING
PLANE
h
E
D
M
0
M
B
M
0.25
S
A
S
B
T
e
T
B
A
DIM
A
A1
B
C
D
E
e
H
h
L
MIN
2.35
0.10
0.35
0.23
12.65
7.40
MAX
2.65
0.25
0.49
0.32
12.95
7.60
MILLIMETERS
1.27 BSC
10.05
0.25
0.50
0
10.55
0.75
0.90
7
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE PROTRUSION SHALL
BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT
MAXIMUM MATERIAL CONDITION.