NB-IoT  Module  Series 
                             BC660K-GL  Hardware  Design 
 
BC660K-GL_Hardware_Design                             42 / 57 
 
 
 
U.FL-LP serial connectors listed in the following figure can be used to match the U.FL-R-SMT. 
 
Figure 25: Mechanicals of U.FL-LP Connectors 
 
The following figure describes the space factor of mated connectors. 
 
Figure 26: Space Factor of Mated Connectors (Unit: mm) 
 
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