The
J-Leaded Ceramic Chip
Carrier,
or JLCC,
is
a square or rectangular surface-mount ceramic package that has J-formed
leads around its periphery. The plastic-molded equivalent of the JLCC is
the PLCC.
Typical JLCC's have
lead counts that range from 20 to 84. A JLCC's lead pitch (distance between
leads) is typically 50
mils (1.27 mm).
The JLCC can either be directly soldered
onto the PCB or operated using a socket.
Table 1.
Properties of Some JLCC's
|
No. of Leads |
Body
Size incl.
Leads |
Body Height incl. Leads |
Lead Pitch |
|
20 |
395 mils x
395 mils |
125 mils
max. |
50 mils |
|
28 |
490 mils x
490 mils |
125 mils
max. |
50 mils |
|
32 |
450 mils x
700 mils |
150 mils
max. |
50 mils |
|
44 |
690 mils x
690 mils |
190 mils
max. |
50 mils |
|
68 |
995 mils x
995 mils |
200 mils
max. |
50 mils |
|
84 |
1190 mils x
1190 mils |
200 mils
max. |
50 mils |
