Standard dimensional tolerances for carrier tape pocket dimensions
are 100 µm deviation from target.

However, as component sizes drop, the dimensional tolerance of the pocket can become more important.
Larger tolerances for a small component could lead to excessive part
rotation or tilt within the pocket.

Smaller, more complex components may require tighter tolerances down to the 50 µm level. Finally, new and emerging component packages such as 0603 leadless wafer level chip scale packaging (WLSCSP) may call out 30 µm tolerance for the
pocket dimensions.

Find vendor,sellers of carrier tape ,contact Ningbo Junan E-tech