{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"430450419","brand":"Molex","brandSlug":"molex","productSlug":"430450419","canonicalUrl":"https://icsourcedirect.com/molex/430450419","factsUrl":"https://icsourcedirect.com/api/mcp/products/430450419","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Fit 3.0 43045 series, 430450419, SMD header, 4 circuits, dual-row, 0.118 in (3.00 mm) pitch, gold-on-mating/tin-on-post plating, 8 A per circuit, 600 V, locking ramp, UL94 V-0.","salesMarkdown":"## Who this Micro-Fit 3.0 header is for The Molex 430450419 is the 4-circuit, dual-row SMD header in the Micro-Fit 3.0 43045 series. It connects a board to discrete wires via a mating receptacle housing — the locking ramp keeps the pair together in environments where vibration or cable yank would pop an unlatched connector. The gold-over-nickel mating surface (15.0 µin) is specced for repeated mating cycles; the tin-plated solder tails handle reflow without issue. ## What the 8 A rating means in practice 8 A per circuit is not a derated signal current — it's a power-level rating for a 3.00 mm pitch header. Derate above 105 °C per the manufacturer's curve; within the rated range, the contact temperature rise stays under the LCP housing's limit. ## Board-fit and mounting details Shrouded on all four walls, so the mating receptacle aligns without stubbing pins. The 0.118 in (3.00 mm) row-to-row spacing matches the pitch, giving a symmetrical footprint for the dual-row layout. Insulation height is 0.390 in (9.91 mm) above the board, which clears most low-profile enclosures.","metaTitle":"Molex Micro-Fit 3.0 430450419, 4-circuit SMD header, 8 A","metaDescription":"Molex 430450419 Micro-Fit 3.0 SMD header, 4 circuits, 3.00 mm pitch, 8 A per circuit, gold mating contacts, UL94 V-0. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"Micro-Fit 3.0 43045","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Style":"Board to Cable/Wire","title":"430450419","Series":"Micro-Fit 3.0 43045","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Solder Retention","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","description":"CONN HEADER SMD 4POS 3MM","Applications":"Automotive, General Purpose, Industrial, Medical, Telecommunications","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Surface Mount","Connector Type":"Header","Fastening Type":"Locking Ramp","Number of Rows":"2","Pitch - Mating":"0.118\\\" (3.00mm)","Voltage Rating":"600V","Contact Material":"Brass","Insulation Color":"Black","Insulation Height":"0.390\\\" (9.91mm)","Base Product Number":"043045","Insulation Material":"Liquid Crystal Polymer (LCP), Glass Filled","Number of Positions":"4","Row Spacing - Mating":"0.118\\\" (3.00mm)","Contact Finish - Post":"Tin","Current Rating (Amps)":"8A","Operating Temperature":"-40°C ~ 105°C","Contact Finish - Mating":"Gold","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"100.0µin (2.54µm)","Contact Finish Thickness - Mating":"15.0µin (0.38µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.41","priceTiers":[{"qty":1,"price":"$3.41000","currency":"USD"},{"qty":10,"price":"$3.00500","currency":"USD"},{"qty":100,"price":"$2.39040","currency":"USD"},{"qty":200,"price":"$2.39035","currency":"USD"},{"qty":1000,"price":"$1.98059","currency":"USD"},{"qty":2000,"price":"$1.91230","currency":"USD"},{"qty":5000,"price":"$1.77570","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/00ca37772e7543c28ce45f816c4f34a6.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/430450419/alternatives.json"},"ai":{"faq":[{"question":"Does 430450419 have a locking ramp?","answer":"Yes, the 430450419 uses a locking ramp fastening type, which provides positive retention against vibration and cable pull."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/430450419","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/molex/430450419 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T10:44:45.277Z","lastPublished":"2026-07-16T10:44:45.277Z","indexable":true}}