16
FN7311.11
August 11, 2015
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EL5172, EL5372
Quarter Size Outline Plastic Packages Family (QSOP)
0.010 C A B
SEATING
PLANE
DETAIL X
E E1
1
(N/2)
(N/2)+1
N
PIN #1
I.D. MARK
b
0.004 C
c
A
SEE DETAIL "X"
A2
4¬¨Ðó
GAUGE
PLANE
0.010
L
A1
D
B
H
C
e
A
0.007 C A B
L1
MDP0040
QUARTER SIZE OUTLINE PLASTIC PACKAGES FAMILY
SYMBOL
INCHES
TOLERANCE NOTESQSOP16 QSOP24 QSOP28
A 0.068 0.068 0.068 Max. -
A1 0.006 0.006 0.006 ±0.002 -
A2 0.056 0.056 0.056 ±0.004 -
b 0.010 0.010 0.010 ±0.002 -
c 0.008 0.008 0.008 ±0.001 -
D 0.193 0.341 0.390 ±0.004 1, 3
E 0.236 0.236 0.236 ±0.008 -
E1 0.154 0.154 0.154 ±0.004 2, 3
e 0.025 0.025 0.025 Basic -
L 0.025 0.025 0.025 ±0.009 -
L1 0.041 0.041 0.041 Basic -
N 16 24 28 Reference -
Rev. F 2/07
NOTES:
1. Plastic or metal protrusions of 0.006” maximum per side are not
included.
2. Plastic interlead protrusions of 0.010” maximum per side are not
included.
3. Dimensions “D” and “E1” are measured at Datum Plane “H”.
4. Dimensioning and tolerancing per ASME Y14.5M-1994.
