The Amphenol ICC BERGSTIK II 87052-434HLF is a 34-position, dual-row board-to-board header with square male pins designed for through-hole solder termination. The 0.100 inch (2.54 mm) pitch and 0.770 inch mating length give it the stack height typical of mezzanine or stacked PCB arrangements in industrial automation equipment and telecom backplane assemblies. Rated 5 A per circuit at 110 V, with tin-plated contacts at 100 µin (2.54 µm) thickness on the mating face, it sits in the mid-range current band for the series — adequate for signal and low-power distribution runs rather than high-current rails. All 34 positions are loaded; the housing is UL94 V-0 rated and the push-pull fastening type indicates a friction-latch retention intended for applications where vibration is moderate and field removal is expected.
What the ratings mean for fit
The 0.100 inch pitch matches the industry-standard 2.54 mm grid — it will drop into any board footprint designed for the BERGSTIK II series, but confirm the 34-position count against the BOM line since this is the highest-position variant in the 87052 base family. The 5 A per-contact rating governs individual circuit duty; with tin plating and no gold grade specified, cycle life is moderate — enough for field service mating but not for high-reconnect applications. The 110 V rating is the dielectric limit, not a circuit voltage declaration — the actual system voltage must sit comfortably below it for margin. The 0.120 inch (3.05 mm) tail length is standard through-hole; check your PCB thickness and solder-side clearance.
Sourcing and lifecycle
The 87052-434HLF carries an Active lifecycle status — confirmed in production with no NRND or obsolescence flag on record. No official successor or cross-reference order code is listed in the evidence for this member, so if the circuit count is fixed on the BOM, this is the direct line. Quoted to order against an RFQ; confirm lead time and minimum order quantity with your distributor before committing the build schedule.