{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"430451211","brand":"Molex","brandSlug":"molex","productSlug":"430451211","canonicalUrl":"https://icsourcedirect.com/molex/430451211","factsUrl":"https://icsourcedirect.com/api/mcp/products/430451211","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Fit 3.0 43045 series header, 430451211, 12-position dual-row, 0.118\" (3.00 mm) pitch, right-angle surface mount, gold mating contacts, 8 A per circuit, 600 V, -40°C to 105°C.","salesMarkdown":"The Molex 430451211 is a 12-position, dual-row header from the Micro-Fit 3.0 43045 series. It's a board-to-wire interconnect — a shrouded male pin header that mates with the matching Micro-Fit 3.0 receptacle housing. Rated 8 A per circuit at 600 V, with a -40°C to 105°C operating range and a UL94 V-0 LCP housing. That 8 A per-contact rating is the real-world current limit per pin — it's not a total for the connector. For a 12-position header running all circuits, the total current budget is the sum of the per-contact limits, but the practical limit is set by the temperature rise across the whole assembly. This header is specified for automotive, general-purpose industrial, medical equipment, and telecom applications — basically any board-to-wire power or signal interconnect that needs a locked, shrouded connection in a moderate-temperature environment.","metaTitle":"Molex Micro-Fit 3.0 430451211, 12-Pos Header, 3mm Pitch, 8A","metaDescription":"Molex 430451211 Micro-Fit 3.0 header, 12-position dual-row, 3.00mm pitch, right-angle SMT, gold contacts, 8A, 600V, -40 to 105°C. Active, ROHS3.","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":"430451211","Series":"Micro-Fit 3.0 43045","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Solder Retention","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","description":"CONN HEADER SMD R/A 12POS 3MM","Applications":"Automotive, General Purpose, Industrial, Medical, Telecommunications","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Surface Mount, Right Angle","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":"0.290\\\" (7.37mm)","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","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":"30.0µin (0.76µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.03","priceTiers":[{"qty":1,"price":"$8.03000","currency":"USD"},{"qty":10,"price":"$7.02700","currency":"USD"},{"qty":100,"price":"$5.68880","currency":"USD"},{"qty":200,"price":"$5.68875","currency":"USD"},{"qty":1000,"price":"$4.68486","currency":"USD"},{"qty":2000,"price":"$4.58448","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/1e469644544b7af4423744f9fba32980.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/430451211/alternatives.json"},"ai":{"faq":[{"question":"What is the current rating of molex 430451211?","answer":"8 A per circuit at 600 V, with a -40°C to 105°C operating range. That 8 A is per-contact, not total — the practical limit depends on the temperature rise across all loaded circuits."},{"question":"What is the mating connector for 430451211?","answer":"It mates with the matching Micro-Fit 3.0 receptacle housing — the locking ramp and 4-wall shroud are designed for that specific receptacle. Use the same series for the wire-side half."},{"question":"Does molex 430451211 support solder retention?","answer":"Yes, it includes solder retention features on the SMT pads to hold the header in place during reflow and resist shear forces from the cable after mating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/430451211","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/430451211 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}}