492AC

MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
QSOP20
CASE 492AC−01
ISSUE O
DATE 22 MAR 2011
2X
SCALE 2:1
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCHES.
3. DIMENSION b DOES NOT INCLUDE DAMBAR
PROTRUSION.
4. DIMENSION D DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS, OR GATE BURRS. MOLD FLASH,
PROTRUSIONS, OR GATE BURRS SHALL NOT
EXCEED 0.005 PER SIDE. DIMENSION E1 DOES NOT
INCLUDE INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION SHALL NOT
EXCEED 0.005 PER SIDE. D AND E1 ARE
DETERMINED AT DATUM H.
5. DATUMS A AND B ARE DETERMINED AT DATUM H.
0.004 C D
D
A
20
L2
D
11
GAUGE
PLANE
SEATING
PLANE
E
E1
C
L
C
DETAIL A
2X
2X 10 TIPS
0.004 C D
1
10
20X
e
B
b
0.007
0.008 C D
C A-B D
M
A2
0.004 C
0.004 C
A1
20X
h x 45 _
A
C
SOLDERING FOOTPRINT
20X
20X
0.42
20
SEATING
PLANE
H
DETAIL A
M
DIM
A
A1
A2
b
c
D
E
E1
e
h
L
L2
M
INCHES
MIN
MAX
---0.069
0.004
0.010
0.049
---0.008
0.012
0.004
0.010
0.341 BSC
0.236 BSC
0.154 BSC
0.025 BSC
0.010
0.020
0.016
0.050
0.010 BSC
0_
8_
GENERIC
MARKING DIAGRAM*
1.12
11
XXXXXXX
XXXXXXX
YYWWG
6.40
1
10
0.635
PITCH
DOCUMENT NUMBER:
MILLIMETERS
MIN
MAX
---1.75
0.10
0.25
1.24
---0.20
0.30
0.10
0.25
8.66 BSC
5.99 BSC
3.91 BSC
0.635 BSC
0.25
0.51
0.41
1.27
0.25 BSC
0_
8_
XXXXX
YY
WW
G
= Specific Device Code
= Year
= Work Week
= Pb−Free Package
*This information is generic. Please refer
to device data sheet for actual part
marking. Pb−Free indicator, “G”, may
or not be present.
DIMENSIONS: MILLIMETERS
98AON55745E
Electronic versions are uncontrolled except when
accessed directly from the Document Repository. Printed
STATUS: ON SEMICONDUCTOR STANDARD
versions are uncontrolled except when stamped
“CONTROLLED COPY” in red.
NEW STANDARD:
© Semiconductor Components Industries, LLC, 2002
Case Outline Number:
http://onsemi.com
QSOP20
DESCRIPTION:
October, 2002
− Rev. 0
PAGE 1 OFXXX
2
1
DOCUMENT NUMBER:
98AON55745E
PAGE 2 OF 2
ISSUE
O
REVISION
RELEASED FOR PRODUCTION. REQ. BY I. CAMBALIZA.
DATE
22 MAR 2011
ON Semiconductor and
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© Semiconductor Components Industries, LLC, 2011
March, 2011 − Rev. 01O
Case Outline Number:
492AC