MP7541B
18 LEAD CERAMIC DUAL-IN-LINE
(300 MIL CDIP)
D18
S
S
1
18
1
10
9
See
Note 1
E
1
E
D
Q
Base
Plane
A
Seating
Plane
L
c
e
L1
α
b
b
1
NOTES
INCHES
MILLIMETERS
1. Index area; a notch or a lead one identification mark
is located adjacent to lead one and is within the
shaded area shown.
SYMBOL
MIN
MAX
MIN
MAX
NOTES
A
b
––
0.014
0.038
0.008
––
0.200
0.023
0.065
0.015
0.960
0.310
0.320
––
0.356
0.965
0.203
––
5.08
0.584
1.65
––
––
2
2. The minimum limit for dimension b may be 0.023
1
(0.58 mm) for all four corner leads only.
3. Dimension Q shall be measured from the seating
plane to the base plane.
b
c
1
0.381
24.38
7.87
––
4
4. This dimension allows for off-center lid, meniscus and
glass overrun.
D
E
E
5. The basic lead spacing is 0.100 inch (2.54 mm) be-
tween centerlines.
0.220
0.290
5.59
4
7.37
8.13
7
6. Applies to all four corners.
1
7. This is measured to outside of lead, not center.
e
L
L
0.100 BSC
2.54 BSC
5
0.125
0.200
––
3.18
3.81
0.381
––
5.08
––
––
––
3
0.150
0.015
––
1
Q
S
0.070
0.098
––
1.78
2.49
––
6
S
0.005
0.13
6
1
α
0°
15°
0°
15°
––
Rev. 2.00
7
EXAR [ EXAR CORPORATION ]
