{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"86840-434HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"86840-434HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/86840-434HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/86840-434HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol ICC BergStik® II, 86840-434HLF, 34 Position, 0.100\" (2.54mm) Pitch, 2 Row, Through Hole, Right Angle, Unshrouded Header, Tin Mating Finish, 5A.","salesMarkdown":"The Amphenol ICC 86840-434HLF is a 34-position, dual-row, unshrouded BergStik® II header. It is a board-to-board interconnect with a 0.100\" (2.54mm) mating pitch and a right-angle through-hole orientation, designed for parallel-to-PCB mounting in space-constrained enclosures. The unshrouded design means the male pins are exposed, which keeps the profile low but offers no keying or mis-mate protection — the mating receptacle must be aligned by the board layout alone. ## What the ratings mean for the fit The 0.100\" pitch is the legacy 2.54mm standard — it matches the vast installed base of perfboard, prototyping grids, and IDC ribbon-cable systems. The 34 positions are fully loaded (all positions populated), so the BOM line count is exact. Tin plating on both the mating surface and the solder post keeps cost low, but it limits the connector to a semi-permanent duty cycle: tin-on-tin contacts are rated for fewer mating cycles than gold, so this header is best specified for one-time assembly or infrequent field service, not repeated connect/disconnect. The 5A per contact rating is comfortable for signal lines and moderate power distribution — think a backplane carrying logic-level supplies or a parallel data bus — but derate above the ambient temperature per the product drawing. ## Mounting and termination Right-angle through-hole termination: the pins exit parallel to the board surface, which is the standard orientation for a mezzanine or edge-card connection where the mating cable runs flat against the board. The contact length on the mating side is 0.318\" (8.08mm), and the post length is 0.230\" (5.84mm) — enough for a standard 1.6mm PCB with a solder fillet. The housing is black UL94 V-0 rated, which satisfies the flame-rating requirement for equipment inside an enclosure.","metaTitle":"86840-434HLF BergStik II Header, 34 Pos, 0.100\" Pitch, 5A","metaDescription":"Amphenol ICC BergStik II 86840-434HLF unshrouded header, 34 positions, 0.100\" pitch, 5A, tin finish. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Mfr":"Amphenol ICC (FCI)","Style":"Board to Board","Series":"BERGSTIK® II","Package":"Bag","Features":"-","Shrouding":"Unshrouded","Termination":"Solder","Applications":"-","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Through Hole, Right Angle","Connector Type":"Header","Fastening Type":"Push-Pull","Number of Rows":"2","Pitch - Mating":"0.100\\\" (2.54mm)","Product Status":"Active","Voltage Rating":"110V","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Black","Insulation Height":"0.190\\\" (4.83mm)","Ingress Protection":"-","Base Product Number":"86840","Insulation Material":"-","Number of Positions":"34","Row Spacing - Mating":"0.100\\\" (2.54mm)","Contact Finish - Post":"Tin","Contact Length - Post":"0.230\\\" (5.84mm)","Current Rating (Amps)":"5A","Operating Temperature":"-","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.318\\\" (8.08mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"-","Contact Finish Thickness - Mating":"100.0µin (2.54µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.4078","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/f07eb009696ffe298bd4359a478f2e44.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/86840-434HLF/alternatives.json"},"ai":{"faq":[{"question":"What is the pinout of the 86840-434HLF?","answer":"The 86840-434HLF is a 34-position, dual-row header with all positions loaded. The pinout follows the standard 0.100\" x 0.100\" grid pattern typical of BergStik II headers — row A on one side, row B on the other, with no keying or shrouding."},{"question":"What are the compatible mating connectors for the 86840-434HLF?","answer":"The 86840-434HLF mates with any standard 0.100\" pitch dual-row receptacle, such as a BergStik II IDC socket or a crimp-style housing that accepts 0.025\" square pins. The unshrouded design means the receptacle must provide its own alignment and retention."},{"question":"Is the 86840-434HLF RoHS compliant?","answer":"The 86840-434HLF is listed with a tin contact finish on both the mating and post surfaces, which is consistent with RoHS-compliant lead-free processing. Confirm full RoHS/REACH compliance with the manufacturer's certificate at order time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/86840-434HLF","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/amphenol/86840-434HLF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}