SMT常用封装建库规范 - 图文

PLCC20S PLCC28R PLCC28S PLCC32R PLCC44S PLCC52S PLCC68S PLCC84S 17 30 10 10 18 20 17 30 10 18 20 2. PLCC焊盘外形：

3. PLCC 回流焊焊盘尺寸： 封装名称 PLCC20S PLCC28R PLCC28S PLCC32R PLCC44S PLCC52S PLCC68S PLCC84S A x B 410 x 410 x 620 x 420 x 520 x 520 x 620 x 520 x 720 x 720 x 820 x 820 x 1020 x 1020 x 1220 x 1220 x C x D 200 x 200 x 400 x 200 x 300 x 300 x 400 x 300 x 500 x 500 x 600 x 600 x 800 x 800 x 1000 x 1000 x E / 50 / 50 / 50 / 50 / 50 / 50 / 50 / 50 X / 25 / 25 / 25 / 25 / 25 / 25 / 25 / 25 Y / 80 / 80 / 80 / 80 / 80 / 80 / 80 / 80