{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0430450427","brand":"Molex","brandSlug":"molex","productSlug":"0430450427","canonicalUrl":"https://icsourcedirect.com/molex/0430450427","factsUrl":"https://icsourcedirect.com/api/mcp/products/0430450427","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Fit 3.0 43045 0430450427, Board to Cable/Wire Header, 4 Circuits, 2 Rows, 0.118\" (3.00mm) Pitch, Solder Termination, Through Hole, Tin Plating, 8 A, 600 V, UL94 V-0.","salesMarkdown":"## What This Connector Is The Molex 0430450427 is a 4-circuit, dual-row header from the Micro-Fit 3.0 43045 series. It is a board-to-cable/wire interconnect, meaning it mounts on a PCB and mates with a receptacle housing crimped to discrete wires. The 3.00 mm pitch and matching row spacing give a compact but serviceable footprint for power and signal distribution in automotive, industrial, medical, and telecom equipment. ## Key Features and What They Mean for Your Build Rated 8 A per circuit with a 600 V voltage rating, this header carries enough current for a moderate power rail or a bundle of signal lines. The 8 A figure is per-contact at the rated temperature rise — derate above 25 °C per the product drawing. The tin-plated contacts (60.0 µin on the mating side) are suited for applications with a limited number of mating cycles; if your design requires frequent disconnect/reconnect, a gold-plated variant in the same series would be the better call. The 4-wall shrouding protects the male pins from bending during handling and prevents a mis-mated connection. A locking ramp on the header engages with the matching receptacle latch, giving positive retention in vibration-prone environments like an engine bay or an industrial cabinet. The through-hole solder termination provides a robust mechanical anchor to the PCB, and the board guide feature helps align the connector during automated assembly. The housing is molded from glass-filled LCP with a UL94 V-0 flammability rating, so it meets the flame-retardant requirement for equipment inside an enclosure. The black insulation colour is standard for the series. ## Where It Fits in the Series The 0430450427 is the 4-circuit, dual-row member of the Micro-Fit 3.0 43045 header family. Against the 2-circuit single-row sibling (0430450201), this part gives you two rows at the same 3.00 mm pitch — useful when you need four positions but want to keep the board footprint narrower than a single-row 4-position part. The dual-row layout also provides a natural keying against mis-mating with a single-row receptacle.","metaTitle":"Molex Micro-Fit 3.0 0430450427 Header, 4-Circuit, 8 A","metaDescription":"Molex 0430450427 Micro-Fit 3.0 header, 4 positions, 3.00 mm pitch, 8 A per circuit, tin-plated contacts. 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":"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":"-","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Tin","Contact Length - Mating":"-","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"-","Contact Finish Thickness - Mating":"60.0µin (1.52µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/0d721345d2d6d65d6196bb048814a0ce.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/0430450427/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0430450427","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/0430450427 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}}