{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0430450428","brand":"Molex","brandSlug":"molex","productSlug":"0430450428","canonicalUrl":"https://icsourcedirect.com/molex/0430450428","factsUrl":"https://icsourcedirect.com/api/mcp/products/0430450428","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Fit 3.0 43045 Series Header, 0430450428, 4 positions (2×2), 3.00 mm pitch, through-hole solder, 8 A per circuit at 600 V, gold mating contacts (15.0 µ\"), tin posts (100.0 µ\"), shrouded 4-wall, locking ramp, UL94 V-0.","salesMarkdown":"The Molex 0430450428 is a 4-position (2×2), dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-cable/wire power interconnects. It carries 8 A per circuit at 600 V on a 3.00 mm pitch — the 8 A rating means each contact handles bus-level current, sized for a DC power rail or a moderate load circuit, not a signal line. Gold-plated mating contacts (15.0 µ\") resist fretting corrosion over repeated matings; tin-plated solder posts (100.0 µ\") wet reliably in wave solder. Within the Micro-Fit 3.0 43045 header family, the 0430450428 at 4 positions (2×2) is the compact power entry compared to the 16-position 430451610 at the same 3.00 mm pitch. Both carry the same 8 A per circuit and 600 V rating, so the choice comes down to circuit count: the 4-position fits a 2×2 grid for a single power pair or a small load group; the 16-position fills a 2×8 layout for a multi-circuit harness. No pitch or footprint difference — just the position count matching the BOM line. Mates with the matching Micro-Fit 3.0 receptacle housing (e.g., 43025 series) using the standard crimp terminal. The 4-wall shroud aligns the pair during blind mating.","metaTitle":"Molex Micro-Fit 3.0 0430450428, 4-Pos Header, 8 A","metaDescription":"Molex Micro-Fit 3.0 43045 header, 4 positions (2×2), 3.00 mm pitch, 8 A per circuit at 600 V, gold mating contacts. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Style":"Board to Cable/Wire","title":"0430450428","Series":"Micro-Fit 3.0 43045","Features":"Board Guide","Packaging":"Tray","Shrouding":"Shrouded - 4 Wall","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","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","Contact Length - Post":"0.125\\\" (3.18mm)","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":"$1.5400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/0d721345d2d6d65d6196bb048814a0ce.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/0430450428/alternatives.json"},"ai":{"faq":[{"question":"What is the current rating of the 0430450428?","answer":"The 0430450428 is rated 8 A per circuit at 600 V. The 8 A per circuit means each power blade carries bus-level current, sized for a DC power rail or a moderate load circuit, not a signal line."},{"question":"What is the mating connector for the 0430450428?","answer":"The 0430450428 mates with the matching Micro-Fit 3.0 receptacle housing (e.g., 43025 series) using the standard crimp terminal. The locking ramp and 4-wall shroud provide positive retention and alignment."},{"question":"What is the pitch of the 0430450428?","answer":"The 0430450428 uses a 3.00 mm (0.118\") pitch on both the mating interface and the row spacing, fitting a standard 2×2 grid footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0430450428","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/0430450428 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}}