BERGSTIK® II 24-Position Unshrouded Header
The FCI 93939-424HLF is a 24-position, dual-row unshrouded header from the BERGSTIK® II series, built on the standard 0.100" (2.54 mm) pitch grid. It uses square male pins with tin-on-tin contact finish — the mating side and solder post both carry 100.0 µ" of tin over phosphor bronze. The right-angle through-hole orientation places the pins parallel to the board, making this header a natural fit for board-edge mezzanine or daughtercard interconnects where the connector sits at the PCB perimeter. All 24 positions are loaded, and the push-pull fastening means no locking ramp — the retention comes from the pin-to-receptacle friction fit alone.
What the Key Ratings Mean for the Fit
The 0.100" pitch is the industry-standard 2.54 mm grid. The 5 A per-contact rating is typical for tin-plated square pins at this pitch.
Sourcing and Lifecycle
The 93939-424HLF carries an active lifecycle status — no obsolescence notice, no last-time-buy pressure. No official replacement or cross-reference is on record; the BERGSTIK® II series includes other 24-position variants with different plating or orientation, but none is a direct pin-compatible substitute without a board layout change.