For better fastening of SMD headers onto PCBs, Fischer Elektronik offers designs with positioning pins for double-row male headers (SL LP 6 SMD ...) and female headers (BL 16 SMD ...).
Both ends of the headers are provided with centrally-arranged plastic tenons that have a diameter of 1,2 mm. The drilled hole in the PCB, having a dimension between 1,2 and 1,3 mm, enables the headers to be fitted precisely and safely. The minimum number of contacts is six (2 x 3 contacts). The spacing of the drilled holes for accommodating the positioning pins is 2,54 mm for the 6-contact version and this spacing increases with the number of contacts. The maximum number of contacts in the standard version is 40 (2 x 20 contacts).
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