{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"55101-T1109LF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"55101-T1109LF","canonicalUrl":"https://icsourcedirect.com/amphenol/55101-T1109LF","factsUrl":"https://icsourcedirect.com/api/mcp/products/55101-T1109LF","rawCanonicalId":null},"summary":{"shortDescription":"FCI BERGSTIK® 55101-T1109LF, Board to Board, Unshrouded Header, 9 Positions, 1 Row, 0.100\" (2.54mm) Pitch, Through Hole, Right Angle, Solder Termination, Tin Mating Finish, 5A, UL94 V-0.","salesMarkdown":"## BERGSTIK 55101-T1109LF — 9-Position Unshrouded Header The FCI 55101-T1109LF is a 9-position, single-row unshrouded header from the BERGSTIK® series, designed for board-to-board interconnect applications. It uses the standard 0.100\" (2.54mm) pitch, making it footprint-compatible with a wide range of legacy and current designs. The through-hole, right-angle mounting suits board-edge or space-constrained layouts where the connector axis runs parallel to the PCB. Rated at 5A per contact with a 110V voltage rating, it handles signal and moderate power duty. The tin-on-tin contact system — 100.0µin of tin on both the mating and post sides — is a cost-effective choice for applications with moderate mating cycle requirements, typical of internal board stacks or peripheral connections. ## What the Ratings Mean for Your Fit The 0.100\" pitch is the de facto standard for many through-hole header applications — your board footprint needs to match this spacing, and the single-row layout keeps routing straightforward. The 5A per-contact rating is the thermal limit at room ambient; in a dense board stack or elevated-temperature enclosure, you'll want to derate per the manufacturer's curve. The right-angle orientation means the pins exit parallel to the board surface, which is useful when the mating receptacle approaches from the side rather than from above. The UL94 V-0 housing material meets the flame-rating requirement for equipment inside an enclosure, so no special handling is needed for compliance.","metaTitle":"55101-T1109LF BERGSTIK Header, 9 Pos, 0.100\" Pitch, 5A","metaDescription":"FCI BERGSTIK 55101-T1109LF unshrouded header, 9 positions, 0.100\" pitch, 5A, tin plating. Active production, sourced to order against RFQ.","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®","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":"1","Pitch - Mating":"0.100\\\" (2.54mm)","Product Status":"Active","Voltage Rating":"110V","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Black","Insulation Height":"0.140\\\" (3.56mm)","Ingress Protection":"-","Base Product Number":"55101","Insulation Material":"-","Number of Positions":"9","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.090\\\" (2.29mm)","Current Rating (Amps)":"5A","Operating Temperature":"-","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.230\\\" (5.84mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"100.0µin (2.54µm)","Contact Finish Thickness - Mating":"100.0µin (2.54µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4696","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/5df463f350e91e65e23bd6425bccdf67.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/55101-T1109LF/alternatives.json"},"ai":{"faq":[{"question":"What is the mating connector for 55101-T1109LF?","answer":"This unshrouded header mates with standard 0.100\" pitch IDC receptacles or discrete-wire housings that accept the matching square-pin geometry. The specific receptacle part number depends on your termination style — IDC, crimp, or solder — and the required wire gauge."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/55101-T1109LF","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/55101-T1109LF 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}}