Obsolete

Product(s)

- Obsolete

Product(s)

Package mechanical data

STHS4257A, STHS4257A1, STHS4257L, STHS4257L1

14/18

4

Package mechanical data

packages. These packages have a Lead-free second level interconnect. The category of

second Level Interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratings related to soldering

conditions are also marked on the inner box label. ECOPACK is an ST trademark.

ECOPACK specifications are available at: www.st.com.

Figure 9.

SO8 – 8-lead plastic small outline, 150mils width, mechanical drawing

1.

Drawing is not to scale.

Table 6.

SO8 – 8-lead plastic small outline, 150mils width, mechanical data

Symb

mm

inches

Typ

Min

Max

Typ

Min

Max

A

–

1.35

1.75

–

0.053

0.069

A1

–0.10

0.25–

0.004

0.010

B

–

0.33

0.51

–

0.013

0.020

C

–

0.19

0.25

–

0.007

0.010

D

–

4.80

5.00

–

0.189

0.197

ddd

–

–0.10–

–

0.004

E

–

3.80

4.00

–

0.150

0.157

e

1.27

–

–

0.050

–

–

H

–

5.80

6.20

–

0.228

0.244

h

–

0.25

0.50

–

0.010

0.020

L

–

0.40

0.90

–

0.016

0.035

α

–

0°

8°

–

0°

8°

N8

8

SO-A

E

8

ddd

B

e

A

D

C

L

A1

α

1

H

h x 45˚

A2