Digi XBee S2C 802.15.4 User Manual page 172

PCB design and manufacturing
The XBee/XBee-PRO S2C 802.15.4 RF Module is designed for surface-mount on the OEM PCB. It has
castellated pads to allow for easy solder attach inspection. The pads are all located on the edge of the
module, so there are no hidden solder joints on these modules.
Recommended solder reflow cycle
Recommended footprint and keepout
Flux and cleaning
Rework
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