{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"71966-303LF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"71966-303LF","canonicalUrl":"https://icsourcedirect.com/amphenol/71966-303LF","factsUrl":"https://icsourcedirect.com/api/mcp/products/71966-303LF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol ICC (FCI) Dubox™ 71966-303LF, 34-position (30 loaded) female socket receptacle, 0.100\" (2.54mm) pitch, through-hole solder termination, 30 µinch gold mating finish, blue thermoplastic housing, UL94 V-0.","salesMarkdown":"## What This 34-Position Dubox™ Receptacle Does in the Assembly The 71966-303LF is a 34-position female socket header from the Dubox™ series, with 30 positions loaded — four positions are left open, which can be used for keying or omitted for routing flexibility. Through-hole mounting gives it a solid mechanical hold on the PCB — important when the mating half is a cable assembly that gets flexed or pulled. ## Pitch, Pin Count, and Footprint Fit With 34 positions total and 30 loaded, the PCB footprint has four empty through-holes; check your mating header's pin count to confirm alignment. The 0.276\" (7.00mm) insulation height leaves room for routing under the connector body, and the 0.116\" (2.95mm) post length gives a solid solder joint through the board. ## How It Compares to Nearby Dubox™ Siblings The 71991-316LF is a 32-position (all loaded) Dubox™ receptacle with a taller 11.04mm body and longer 0.118\" (3.00mm) post — same 0.100\" pitch, same 30 µinch gold mating finish. If your board has a tighter z-height budget, the 71966-303LF's 7.00mm insulation height is the lower-profile choice. The 95264-301LF is a 20-position (16 loaded) variant with 29.5 µinch gold — nearly identical plating, fewer circuits.","metaTitle":"71966-303LF Amphenol ICC Dubox™ 34-Pin Female Socket Header","metaDescription":"Amphenol ICC (FCI) Dubox™ 71966-303LF: 34-position (30 loaded), 0.100\" pitch, through-hole receptacle with 30 µinch gold mating finish. Active, RoHS.","metaKeywords":null},"attributes":{"series":"Dubox™","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Female Socket Headers"],"specifications":{"Mfr":"Amphenol ICC (FCI)","Style":"Board to Board or Cable","Series":"Dubox™","Package":"Tube","Features":"-","Termination":"Solder","Applications":"-","Contact Type":"Female Socket","Contact Shape":"Square","Mounting Type":"Through Hole","Connector Type":"Receptacle","Fastening Type":"Push-Pull","Number of Rows":"2","Pitch - Mating":"0.100\\\" (2.54mm)","Product Status":"Active","Voltage Rating":"-","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Blue","Insulation Height":"0.276\\\" (7.00mm)","Ingress Protection":"-","Base Product Number":"71966","Insulation Material":"Thermoplastic, Polyester, Glass Filled","Number of Positions":"34","Row Spacing - Mating":"0.100\\\" (2.54mm)","Contact Finish - Post":"Tin","Contact Length - Post":"0.116\\\" (2.95mm)","Current Rating (Amps)":"-","Operating Temperature":"-","Mated Stacking Heights":"-","Contact Finish - Mating":"Gold","Number of Positions Loaded":"30","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"-","Contact Finish Thickness - Mating":"30.0µin (0.76µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6100","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.61000","currency":"USD"},{"qty":10,"price":"$2.36600","currency":"USD"},{"qty":100,"price":"$2.08440","currency":"USD"},{"qty":500,"price":"$1.77178","currency":"USD"},{"qty":1000,"price":"$1.51122","currency":"USD"},{"qty":5000,"price":"$1.35488","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/09335e5fda1b505354c7a4abf7cff6d7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pin count of 71966-303LF?","answer":"34 positions total, with 30 positions loaded. Four positions are unloaded — they exist as through-holes on the PCB footprint but have no contact installed."},{"question":"Is 71966-303LF a through-hole or surface mount connector?","answer":"Through-hole. The 0.116\" (2.95mm) post length solders into the PCB, giving a stronger mechanical anchor than an SMT part."},{"question":"When sourcing 71966-303LF, what's the closest functional alternative — 71991-316LF?","answer":"The 71991-316LF is a 32-position (all loaded) Dubox™ receptacle with the same 0.100\" pitch, 30 µinch gold, and through-hole termination. The main difference is body height: 11.04mm vs 7.00mm for the 71966-303LF. If your z-height allows the taller body and you need all positions loaded, it is a direct swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/71966-303LF","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/71966-303LF 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}}