{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0430451229","brand":"Molex","brandSlug":"molex","productSlug":"0430451229","canonicalUrl":"https://icsourcedirect.com/molex/0430451229","factsUrl":"https://icsourcedirect.com/api/mcp/products/0430451229","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Fit 3.0 43045 series, 0430451229, Board-to-Cable/Wire header, 12 circuits, 2 rows, 3.00 mm pitch, 8 A, 600 V, through-hole, solder termination, gold mating contacts, locking ramp.","salesMarkdown":"The Molex 0430451229 is a 12-circuit, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-cable/wire interconnects. ## Position count and footprint match With 12 positions loaded across two rows, this header matches a 12-circuit BOM line directly. The 3.00 mm pitch and 0.125\" (3.18 mm) post length define the through-hole footprint — the same as the 10-position 0430451210 and the 14-position 0430451214 in the same series, so a board layout can scale across position counts without changing the pad geometry. The 0.390\" (9.91 mm) insulation height clears most mating receptacle housings without interference. ## Mating and assembly","metaTitle":"Molex Micro-Fit 3.0 0430451229 Header, 12 Circuits, 8 A","metaDescription":"Molex 0430451229 Micro-Fit 3.0 header, 12 positions, dual-row, 3.00 mm pitch, 8 A, 600 V, gold 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":{"Mfr":"Molex","Style":"Board to Cable/Wire","Series":"Micro-Fit 3.0 43045","Features":"Board Guide","Packaging":"Tray","Shrouding":"Shrouded - 4 Wall","Part Status":"Active","Termination":"Solder","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","lifecycle_stage":"unknown","Contact Material":"Brass","Insulation Color":"Black","Insulation Height":"0.390\\\" (9.91mm)","Ingress Protection":"-","Base Product Number":"043045","Insulation Material":"Liquid Crystal Polymer (LCP), Glass Filled","Number of Positions":"12","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","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Gold","Contact Length - Mating":"-","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"100.0µin (2.54µm)","Contact Finish Thickness - Mating":"30.0µin (0.76µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.7800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/0d721345d2d6d65d6196bb048814a0ce.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/0430451229/alternatives.json"},"ai":{"faq":[{"question":"What is the mating connector for Molex 0430451229?","answer":"This header mates with a Micro-Fit 3.0 receptacle housing from the same 43045 series, using standard crimp terminals. The locking ramp and 4-wall shroud ensure a secure, keyed connection."},{"question":"What is the current rating of the 0430451229?","answer":"The 0430451229 is rated 8 A per circuit at 600 V. The 30.0 µin gold plating on the mating side supports this current level over repeated mating cycles without degradation."},{"question":"Can 0430451229 be used as a replacement for Molex 43045-1219?","answer":"The 0430451229 is a 12-position, dual-row header in the same Micro-Fit 3.0 series. Verify the position count, pitch, and mounting orientation against the original BOM line before substituting — the 43045-1219 may differ in plating or packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0430451229","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/0430451229 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}}