The FCI 93939-442HLF is a 42-position unshrouded male pin header from the BERGSTIK® II series, designed for board-to-board interconnects. It uses a 0.100" (2.54mm) pitch in a dual-row layout, with all 42 positions loaded. The right-angle through-hole termination places the pins parallel to the PCB, suited for edge-mount or space-constrained layouts where the mating axis runs along the board surface. Rated 5 A per contact with a 110 V voltage rating, the header carries enough current for signal and moderate power duty on a standard 0.100" grid. The tin-on-tin contact finish (100.0 µin on the mating side) is a workhorse choice for cost-sensitive, low-mating-cycle applications — tin wipes clean on first insertion but frets under vibration if the pair is not locked. The UL94 V-0 black housing meets the flammability requirement for equipment inside an enclosure.
Mating and Termination
As an unshrouded header with push-pull fastening, this connector mates with any standard 0.100" pitch dual-row receptacle that accepts 0.025" square pins — no keying, no latch, so the pair relies on the receptacle's own retention (friction or a separate locking ramp). The 0.160" (4.06mm) mating pin length gives enough wipe for a typical box-header or IDC socket. The 0.120" (3.05mm) solder post length suits standard 0.062" to 0.093" PCBs. Termination is solder-only — through-hole for the pins, no press-fit option. The square pin profile (0.025" square) is the industry-standard geometry for this pitch class, compatible with most dual-row crimp or insulation-displacement receptacles on the market.
Sourcing and Lifecycle
The 93939-442HLF carries an Active lifecycle status — full production, no end-of-life notice on record. No official replacement or cross-reference is listed, so the BOM line stays with this exact order code.