The 98424-G52-40ALF: This is a 40-position, dual-row header on 0.079" (2.00mm) pitch — a 20x2 grid that fits a compact SMD footprint. The 2.00mm row spacing matches the pitch, so the total board area for the header is roughly 40 x 2.00mm by 2 rows x 2.00mm, plus the shroud overhang. The latch holder adds a positive lock — the mated pair won't separate under cable strain or moderate vibration.
For a connector that gets mated during assembly and then only during field service, that's a lifetime of reconnects at the contact interface.
The Minitek® 2.00mm series is a current-production family, so BOM continuity is stable for the foreseeable future.
How It Stacks Against the 30-Position Sibling
The only parametric difference from the 30-position version (98424-G52-30ALF) is the circuit count: 40 positions vs 30. Same 2.00mm pitch, same 2-row layout, same GXT gold plating, same latch holder, same SMD footprint scaling. If your BOM calls for 40 circuits, this is the correct member — the 30-position part is a drop-in for a smaller cable assembly, not a functional substitute. The bulk-packaged variant (98424-G52-40LF) is electrically identical but ships in bulk rather than tape-and-reel — choose that one only if you are hand-loading the pick-and-place machine or running low-volume prototype builds.
This is a male pin header — it mates with a 40-position, 2.00mm pitch female receptacle (socket housing) from the same Minitek® 2.00mm series. Termination is SMT solder to the board — no through-hole holes needed. The contact length of 0.157" (4.00mm) provides adequate wipe inside the receptacle contact beam.