{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"79821-156HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"79821-156HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/79821-156HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/79821-156HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BERGSTIK® II, 56-position dual-row male header, unshrouded, 0.100\" (2.54 mm) pitch, 5 A, 110 V, gold or Gold GXT™ 30.0µin plating, through-hole solder, UL94 V-0 black housing.","salesMarkdown":"The Amphenol 79821-156HLF is a 56-position dual-row male header from the BERGSTIK® II series, the workhorse unshrouded pin strip family. It sits on a 0.100\" (2.54 mm) pitch in both rows and between rows, matching the standard 0.100\" grid that dominates legacy and new board-to-board designs. All 56 positions are loaded — no depopulated rows to track on the BOM. Rated 5 A per contact at 110 V, with the current limit set by the contact beam and housing thermal rise, not the pin cross-section. The mating finish is gold or Gold GXT™ at 30.0 µin (0.76 µm), a thickness that handles hundreds of mating cycles without exposing the phosphor bronze base metal. The push-pull fastening and unshrouded profile mean it relies on the mating receptacle's retention — no latch, no locking ramp. UL94 V-0 black housing. Through-hole solder termination with a 0.200\" (5.08 mm) post length suits standard PCB thicknesses. ## What the ratings mean for the board fit The 0.100\" pitch sets the PCB footprint and the mating receptacle's contact spacing. The 5 A per-contact rating is a continuous-current ceiling at room temperature. The 30.0 µin gold on the mating side supports reliable contact resistance over repeated insertions.","metaTitle":"Amphenol 79821-156HLF BERGSTIK II Header, 56-Pos, 5A","metaDescription":"Amphenol 79821-156HLF BERGSTIK II 56-position dual-row male header, 2.54 mm pitch, 5 A, 110 V, gold/GXT plating. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Style":"Board to Board","title":"79821-156HLF","Series":"BERGSTIK® II","Package":"Bag","Shrouding":"Unshrouded","Termination":"Solder","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)","Voltage Rating":"110V","Contact Material":"Phosphor Bronze","Insulation Color":"Black","Insulation Height":"0.100\\\" (2.54mm)","Base Product Number":"79821","Number of Positions":"56","Row Spacing - Mating":"0.100\\\" (2.54mm)","Contact Length - Post":"0.200\\\" (5.08mm)","Current Rating (Amps)":"5A","Overall Contact Length":"0.730\\\" (18.54mm)","Contact Finish - Mating":"Gold or Gold, GXT™","Contact Length - Mating":"0.430\\\" (10.92mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Mating":"30.0µin (0.76µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.1909","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c8f0394c32e820c9621af8eb0b9440c3.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/79821-156HLF/alternatives.json"},"ai":{"faq":[{"question":"What is 79821-156HLF's listed style?","answer":"Board to Board."},{"question":"What series does 79821-156HLF belong to?","answer":"BERGSTIK II."},{"question":"What does 79821-156HLF mate with?","answer":"Any dual-row 0.100\" (2.54 mm) pitch receptacle housing with 56 positions — the header is unshrouded, so the receptacle's keying (if any) determines mis-mate protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/79821-156HLF","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/79821-156HLF 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}}