{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"93944-428HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"93944-428HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/93944-428HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/93944-428HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol ICC (FCI) BERGSTIK® II, 93944-428HLF, Board to Board, Header, Male Pin, Solder, Through Hole, 28 Positions, 0.100\" (2.54 mm) Pitch, Tin Mating Finish, 3 A, UL94 V-0","salesMarkdown":"The 93944-428HLF: It's a through-hole solder termination part meant for board-to-board stacking or wire-to-board via a mating receptacle. The 100 µinch tin plating on the mating face gives a solid oxide barrier for indoor environments, but it's not meant for frequent reconnects — tin frets under vibration if cycled often. ## Sizing the Board Footprint and Stack Height The post length below the insulator is 0.130\" (3.30 mm) — that's the solder tail that goes through the PCB hole. This geometry works for a mezzanine stack where the mating receptacle has a matching depth. The push-pull fastening type means there's no latch — the retention comes from the friction of the pin-to-receptacle interface. ## Mating and Termination Notes The square male pins (0.025\" square typical for the series) engage with the receptacle's dual-beam contacts.","metaTitle":"93944-428HLF BERGSTIK II Header, 28 Pos, 0.100\" Pitch, Tin","metaDescription":"Amphenol ICC (FCI) 93944-428HLF BERGSTIK® II unshrouded header, 28 positions, 0.100\" (2.54 mm) pitch, tin-plated contacts, 3 A rating, UL94 V-0.","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":"1","Pitch - Mating":"0.100\\\" (2.54mm)","Product Status":"Active","Voltage Rating":"-","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Black","Insulation Height":"0.100\\\" (2.54mm)","Ingress Protection":"-","Base Product Number":"93944","Insulation Material":"-","Number of Positions":"28","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.130\\\" (3.30mm)","Current Rating (Amps)":"3A","Operating Temperature":"-65°C~130°C","Mated Stacking Heights":"-","Overall Contact Length":"0.941\\\" (23.90mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.711\\\" (18.06mm)","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":"$2.3000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/92307fceaf3148c5e5d11d6ec0b95cb1.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/93944-428HLF","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/93944-428HLF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T20:41:44.623Z","lastPublished":"2026-07-23T20:41:44.623Z","indexable":true}}