The carrier tape cavity is determined by the size of A0, B0 and t. there should be enough space to accommodate the components:
carrier tape cavity
(a) The assembly shall not protrude beyond the surface of the carrier belt

(b) When the cover strip is stripped, the assembly can easily separate from the cavity from the vertical direction

(c) The maximum rotation angle of 8 and 12mm belt assemblies is 20 °, and the maximum rotation angle of assemblies in 16 and 24mm belts is 10 ° (see Figure 7)

(d) The maximum horizontal displacement of components in 8 and 12 mm belts is 0.5 mm, and the maximum horizontal displacement of components in 16 and 24 mm belts is 0.1 mm— carrier tape cavity