{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"87901-434HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"87901-434HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/87901-434HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/87901-434HLF","rawCanonicalId":null},"summary":{"shortDescription":"FCI / Amphenol BERGSTIK® II, Board to Board Header, 34 Positions, 0.100\" (2.54mm) Pitch, Dual Row, Through Hole, Tin Mating Finish, Unshrouded, 5 A.","salesMarkdown":"## BERGSTIK II 34-Pin Unshrouded Header The FCI / Amphenol 87901-434HLF is a 34-position, dual-row unshrouded header from the BERGSTIK® II series, designed for board-to-board stacking applications on a standard 0.100\" (2.54 mm) pitch grid. Each row is also spaced at 0.100\", so the total footprint is a compact 34-pin rectangle that matches the industry-standard 0.100\" x 0.100\" pattern. ## Board Layout and Footprint Because this header is unshrouded, the board footprint is just the two rows of 0.025\" square pins on 0.100\" centers. There is no plastic shroud to allow for in the keep-out zone, so the mating receptacle's housing provides the polarization and alignment. The black UL94 V-0 insulation height of 0.100\" (2.54 mm) sits flush with the board surface, so the footprint is essentially the pin field itself.","metaTitle":"FCI 87901-434HLF BERGSTIK II Header, 34 Pos, 0.100\" Pitch","metaDescription":"FCI BERGSTIK II 87901-434HLF unshrouded header, 34 positions, 0.100\" pitch, 5 A, tin-plated, UL94 V-0. 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","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":"0.100\\\" (2.54mm)","Ingress Protection":"-","Base Product Number":"87901","Insulation Material":"-","Number of Positions":"34","Row Spacing - Mating":"0.100\\\" (2.54mm)","Contact Finish - Post":"Tin","Contact Length - Post":"0.120\\\" (3.05mm)","Current Rating (Amps)":"5A","Operating Temperature":"-","Mated Stacking Heights":"-","Overall Contact Length":"1.040\\\" (26.42mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.820\\\" (20.83mm)","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/c8f0394c32e820c9621af8eb0b9440c3.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/87901-434HLF/alternatives.json"},"ai":{"faq":[{"question":"Is 87901-434HLF unshrouded?","answer":"Yes, 87901-434HLF is an unshrouded header — there is no plastic wall around the pins, so the mating receptacle provides the alignment and polarization."},{"question":"What is the termination type for 87901-434HLF?","answer":"Termination is through-hole solder. The contact posts are 0.120\" (3.05 mm) long, sized for a standard PCB thickness."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/87901-434HLF","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/87901-434HLF 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}}