ISL71840SEHFSLASHPROTO datasheet(27/28 Pages) RENESAS

27 / 28 page

ISL71840SEH

FN8734 Rev.5.01

Page 27 of 27

Oct 24, 2022

Package Outline Drawing

For the most recent package outline drawing, see K28.A.

Ceramic Metal Seal Flatpack Packages (Flatpack)

NOTES:

1. Index area: A notch or a pin one identification mark shall be located

adjacent to pin one and shall be located within the shaded area

shown. The manufacturer’s identification shall not be used as a pin

one identification mark. Alternately, a tab (dimension k) may be

used to identify pin one.

2. If a pin one identification mark is used in addition to a tab, the limits

of dimension k do not apply.

3. This dimension allows for off-center lid, meniscus and glass over-

run.

4. Dimensions b1 and c1 apply to lead base metal only. Dimension M

applies to lead plating and finish thickness. The maximum limits of

lead dimensions b and c or M shall be measured at the centroid of

the finished lead surfaces, when solder dip or tin plate lead finish is

applied.

5. N is the maximum number of terminal positions.

6. Measure dimension S1 at all four corners.

7. For bottom-brazed lead packages, no organic or polymeric materi-

als shall be molded to the bottom of the package to cover the leads.

8. Dimension Q shall be measured at the point of exit (beyond the me-

niscus) of the lead from the body. Dimension Q minimum shall be

reduced by 0.0015 inch (0.038mm) maximum when solder dip lead

finish is applied.

9. Dimensioning and tolerancing per ANSI Y14.5M - 1982.

10. Controlling dimension: INCH.

-D-

-C-

0.004

H A - B

-A-

-B-

0.036

H A - B

SEATING AND

BASE PLANE

-H-

(c)

(b)

SECTION A-A

BASE

LEAD FINISH

METAL

PIN NO. 1

ID AREA

K28.A MIL-STD-1835 CDFP3-F28 (F-11A, CONFIGURATION B)

28 LEAD CERAMIC METAL SEAL FLATPACK PACKAGE

SYMBOL

INCHES

MILLIMETERS

NOTES

MIN

MAX

MIN

MAX

0.045

0.115

1.14

2.92

0.015

0.022

0.38

0.56

0.015

0.019

0.38

0.48

0.004

0.009

0.10

0.23

0.004

0.006

0.10

0.15

0.740

18.80

0.460

0.520

11.68

13.21

0.550

13.97

0.180

4.57

0.030

0.76

0.050 BSC

1.27 BSC

0.008

0.015

0.20

0.38

0.250

0.370

6.35

9.40

0.026

0.045

0.66

1.14

0.00

0.0015

0.04

N28

Rev. 0 5/18/94

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