It uses a dual-row layout on a standard 0.100" (2.54mm) pitch with a matching 0.100" row spacing, giving you 58 positions loaded in two rows. The through-hole solder termination and 0.120" (3.05mm) post length suit it for conventional PCB mounting where the header sits above the board at a 0.100" insulation height.
Rated 5 A per contact at 110 V, this header handles signal-level current across all 58 circuits — the per-contact rating is typical for a 0.100" pitch unshrouded pin header and limits the total board-level current to what the PCB trace width and connector temperature rise can support.
As an unshrouded header, the 87052-458HLF mates with any standard 0.100" pitch dual-row female socket or IDC receptacle that accepts 0.025" square pins — the push-pull fastening means no locking latch, so the mated pair relies on the friction of the contact interface and any external retention from the board-to-board stack. The through-hole solder termination requires the PCB to have 58 plated through-holes on a 0.100" grid with 0.100" row spacing; the 0.120" (3.05mm) post length is sized for a standard 0.062" board thickness with enough protrusion for a good solder fillet.