IPC-7351 compliant land pattern design
Pad Size
0.98 × 0.86 mm
Pad Spacing (C-C)
1.32 mm
Gap Between Pads
1.04 mm
Courtyard
2.8 × 1.36 mm
Stencil Aperture
0.83 × 0.73 mm
Pad X Position
±0.66 mm
Paste Area Ratio
72%
Level A - Most
Producibility, hand soldering, rework
Level B - Nominal
Standard manufacturing, balanced
Level C - Least
High density, minimal land