Ratings that govern fit
The 87900-460HLF: Five amps per circuit at 110 V puts this squarely in the low-power signal and control range — enough for indicator LEDs, logic-level bus lines, or individual power rails at modest current. The 5 A rating is per contact, and with all 60 circuits loaded in a dual-row layout, the board designer needs to check thermal rise at the header body under simultaneous full-load conditions, particularly in dense configurations where adjacent pins heat each other through the housing. The tin plating at 100 µin (2.54 µm) is a full, functional thickness — well above the minimum — and is appropriate for the number of mate cycles typical of a board-to-board interconnect that is not repeatedly field-connected. UL94 V-0 on the housing sets the flammability class for safety-critical or enclosed equipment.
Where it is used
Board-to-board stacking, card-edge interconnection, and signal distribution in industrial controls, instrumentation, and communications equipment are the primary applications for this class of unshrouded header. The BERGSTIK II series is widely used as a mating interface for ribbon-cable IDC receptacles and wire-to-board plug housings in harness assemblies, which means the 87900-460HLF frequently appears as the PCB daughter-card header that receives a ribbon cable or discrete-wire connector. The 0.100" insulation height matches the board standoff needed for many sealed or semi-sealed panel designs. The push-pull fastening style — as opposed to a positive lock — means the assembly relies on a friction retention that is sufficient when the mated pair is not subject to repeated unmating or high vibration after installation.