{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"430451824","brand":"Molex","brandSlug":"molex","productSlug":"430451824","canonicalUrl":"https://icsourcedirect.com/molex/430451824","factsUrl":"https://icsourcedirect.com/api/mcp/products/430451824","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Fit 3.0 43045 series, 430451824, 18-position dual-row male header, 3.00mm pitch, 8A per circuit at 600V, tin-plated brass contacts, shrouded 4-wall with locking ramp, through-hole kinked pin termination, board guide and board lock, UL94 V-0 LCP housing, -40°C to 105°C, tray.","salesMarkdown":"## What this header is and where it fits The Molex 430451824 is the 18-circuit, dual-row member of the Micro-Fit 3.0 43045 series — a shrouded male header with a 3.00 mm pitch that mates with the corresponding Micro-Fit 3.0 receptacle housing. It's a board-to-wire power interconnect, rated 8 A per circuit at 600 V, with tin-plated contacts on both the mating and solder sides. The 4-wall shrouding and locking ramp give it positive retention in vibration-prone environments, and the board lock holds it in place during wave solder and against cable strain. Typical applications include automotive harnesses, industrial control cabinets, medical equipment, and telecom power distribution. ## What the ratings mean for the fit The 8 A per circuit at 600 V is the headline rating — each contact carries bus-level current, not just signal, so this header is sized for power rails inside a PSU, a motor drive, or a battery interconnect. The 3.00 mm pitch gives enough creepage for the 600 V rating without forcing an oversized board footprint. The tin plating on the mating surface (60.0 µin thick) is rated for a moderate number of mating cycles — fine for harness assembly and field service, but not for repeated daily disconnect-reconnect duty. The locking ramp gives an audible click when fully seated, which matters for a field-service tech who needs to confirm the connection without a torque tool. The board lock resists shear from cable strain during vibration, and the board guide aids alignment during automated placement.","metaTitle":"Molex Micro-Fit 3.0 430451824, 18-Position Header, 8A, 600V","metaDescription":"Molex 430451824 Micro-Fit 3.0 18-position dual-row header, 3.00mm pitch, 8A per circuit at 600V, tin-plated contacts, shrouded with locking ramp, board lock","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":"430451824","Series":"Micro-Fit 3.0 43045","Package":"Tray","Features":"Board Guide, Board Lock","Shrouding":"Shrouded - 4 Wall","Termination":"Kinked Pin, Solder","description":"CONN HEADER VERT 18POS 3MM","Applications":"Automotive, General Purpose, Industrial, Medical, Telecommunications","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Through Hole","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":"18","Row Spacing - Mating":"0.118\\\" (3.00mm)","Contact Finish - Post":"Tin","Contact Length - Post":"0.125\\\" (3.18mm)","Current Rating (Amps)":"8A","Operating Temperature":"-40°C ~ 105°C","Contact Finish - Mating":"Tin","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Mating":"60.0µin (1.52µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.5","priceTiers":[{"qty":1,"price":"$4.50000","currency":"USD"},{"qty":10,"price":"$3.95900","currency":"USD"},{"qty":80,"price":"$3.14913","currency":"USD"},{"qty":1440,"price":"$2.60930","currency":"USD"},{"qty":2880,"price":"$2.42935","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/2cd00626506f7b62e7853978b7a4cb8e.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/430451824/alternatives.json"},"ai":{"faq":[{"question":"Is Molex 430451824 RoHS compliant?","answer":"Yes, the 430451824 is listed as ROHS3 Compliant."},{"question":"Does Molex 430451824 have a board lock?","answer":"Yes, the 430451824 includes a board lock feature, which holds the header in place during wave solder and resists shear from cable strain during vibration."},{"question":"What is the pinout of Molex 430451824?","answer":"The 430451824 is an 18-position, dual-row header with all positions loaded. The pinout follows the standard Micro-Fit 3.0 dual-row layout — 9 positions per row at a 3.00 mm pitch, with a row spacing of 0.118\" (3.00 mm). The mating receptacle's circuit numbering matches the header's position order."},{"question":"What mating connector for Molex 430451824?","answer":"The 430451824 mates with the matching Micro-Fit 3.0 receptacle housing — a dual-row, 18-circuit housing that accepts the corresponding crimp terminals. The locking ramp on the header engages the receptacle's latch for positive retention."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/430451824","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/430451824 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}}