1.00 mm Pitch, 2-Position – What the Footprint Means
The BM02B-SRSS-TBT(LF)(SN): A 2-position, 1.00 mm pitch header from JST's SH/SR series, the 0.039" (1.00 mm) centreline sets the PCB pad layout.
SMT Termination and Solder Retention
Surface-mount termination with pick-and-place and solder retention features – the header sits flat on the board during reflow, and the retention bumps hold it in place before soldering. The mated stack height is 4.9 mm, which sets the clearance between the PCB and the mating receptacle body.