{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0430451829","brand":"Molex","brandSlug":"molex","productSlug":"0430451829","canonicalUrl":"https://icsourcedirect.com/molex/0430451829","factsUrl":"https://icsourcedirect.com/api/mcp/products/0430451829","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Fit 3.0 43045 series header, 0430451829, 18-circuit dual-row, 0.118\" (3.00mm) pitch, through-hole solder, shrouded with locking ramp, gold-plated mating contacts, 8A per circuit, 600V rating.","salesMarkdown":"## Micro-Fit 3.0 header for wire-to-board power The Molex 0430451829 is an 18-circuit dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-cable/wire power interconnects. It uses a 0.118\" (3.00mm) pitch, with the male square pins arranged in two rows spaced at the same 0.118\" (3.00mm) row pitch. Rated at 8A per circuit at 600V, this header carries genuine power-level current — sized for DC rails and distribution within the harness, not just signal lines. The through-hole solder termination and the board guide feature simplify alignment during PCB assembly. The 0.118\" (3.00mm) pitch and 0.118\" (3.00mm) row spacing define the PCB footprint — the 18 positions in a 2x9 grid. The 8A per circuit rating is the per-contact limit at the connector; derating above the 105°C operating ceiling follows the standard curve. The 30.0µin gold on the mating side, not the tin-plated solder tails (100.0µin (2.54µm) tin on the post), is what governs the real duty cycle for repeated matings — gold on the contact interface avoids fretting corrosion in high-vibration or field-service applications.","metaTitle":"Molex Micro-Fit 3.0 0430451829, 18-pos, 0.118\" pitch header","metaDescription":"Molex 0430451829 Micro-Fit 3.0 header, 18 positions, 3.00mm pitch, 8A, 600V, gold-plated contacts. 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":"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":"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","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":"$7.5400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/0d721345d2d6d65d6196bb048814a0ce.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/0430451829/alternatives.json"},"ai":{"faq":[{"question":"What is the pitch of the Molex 0430451829?","answer":"The mating pitch is 0.118\" (3.00mm), with the same 0.118\" (3.00mm) row spacing, giving a 2x9 grid for the 18 positions."},{"question":"What is the current rating of 0430451829?","answer":"The header is rated at 8A per circuit at 600V. The gold-plated mating contacts support this power-level current in automotive, industrial, and telecom applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0430451829","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/0430451829 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:04:01.345Z","lastPublished":"2026-07-22T18:04:01.345Z","indexable":true}}