The
Quarter Size Outline Package,
or QSOP,
is
a small rectangular surface-mount plastic package with gull wing leads protruding
out of its longer sides.
The QSOP comes in two standard body
widths: the narrow body QSOP which has a nominal body thickness of 150
mils and the wide body QSOP which has a nominal body thickness of 300
mils. Typical QSOP lead counts range from
16 to 28 leads for the narrow body and 36 to 44 leads for the wide body.
The QSOP lead pitch is typically 25 mils.
Table 1. Properties of
Some Examples of QSOP's
|
Part Number |
No. of Pins |
Body
Size |
Body Thickness |
Lead Pitch |
|
QSOP-16 |
16 |
150 mils x 192
mils |
55 mils |
25 mils |
|
QSOP-20 |
20 |
150 mils x
340 mils |
55 mils |
25 mils |
|
QSOP-24 |
24 |
150 mils x
340 mils |
55 mils |
25 mils |
|
QSOP-28 |
28 |
150 mils x
390 mils |
55 mils |
25 mils |
