{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"430452012","brand":"Molex","brandSlug":"molex","productSlug":"430452012","canonicalUrl":"https://icsourcedirect.com/molex/430452012","factsUrl":"https://icsourcedirect.com/api/mcp/products/430452012","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Fit 3.0 43045 series header, 430452012, 20-position dual-row, 0.118\" (3.00mm) pitch, shrouded 4-wall, through-hole, tin-plated contacts, 8A, 600V.","salesMarkdown":"The Molex 430452012 is a 20-position, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-cable/wire interconnects. It uses a 0.118\" (3.00mm) pitch on both the mating and row spacing, giving a compact footprint for a 20-circuit power or signal interface. The shrouded 4-wall housing with a locking ramp provides positive alignment and retention when mated with the matching Micro-Fit 3.0 receptacle, making it suited for automotive, industrial, medical, and telecom applications where vibration resistance and secure mating are required. Rated 8 A per circuit at 600 V, this header carries enough headroom for moderate power distribution within a harness — think a 20-way power bus or mixed signal-power bundle where each contact handles a few amps. The 8 A figure is per-contact at the stated temperature rise; derate above 25°C ambient per the Micro-Fit 3.0 derating curve. The 600 V rating is line-to-line, which covers most industrial and automotive DC rails comfortably. The tin-on-tin contact system (100.0 µin tin on the mating side, tin on the solder post) is a workhorse choice for moderate mating cycles — typically 20 to 30 cycles before contact resistance starts to climb. The through-hole kinked-pin termination gives a solid solder joint that resists pull-out from cable strain. Operating temperature from -40°C to 105°C and a UL94 V-0 LCP housing mean this header can sit inside an automotive ECU or an industrial cabinet without flame or thermal concerns. Mates with the Micro-Fit 3.0 receptacle housings (e.g., 43025 series) using the matching crimp terminals (43030 for 20-24 AWG). The 4-wall shroud protects the pins from bending during blind mating and prevents misalignment with the receptacle.","metaTitle":"Molex Micro-Fit 3.0 430452012 Header, 20 Pos, 3mm, 8A, 600V","metaDescription":"Molex 430452012 Micro-Fit 3.0 header, 20-position dual-row, 3.00mm pitch, shrouded, through-hole, tin-plated contacts rated 8A at 600V.","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":"430452012","Series":"Micro-Fit 3.0 43045","Package":"Tray","Features":"Board Guide","Shrouding":"Shrouded - 4 Wall","Termination":"Kinked Pin, Solder","description":"CONN HEADER VERT 20POS 3MM","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":"20","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":"Tin","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Mating":"100.0µin (2.54µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.35","priceTiers":[{"qty":1,"price":"$4.35000","currency":"USD"},{"qty":10,"price":"$3.83000","currency":"USD"},{"qty":80,"price":"$3.04663","currency":"USD"},{"qty":1296,"price":"$2.52436","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/40962c7270e255d0a85d423fefa7a1af.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/430452012/alternatives.json"},"ai":{"faq":[{"question":"What is the mating connector for 430452012?","answer":"The 430452012 mates with Micro-Fit 3.0 receptacle housings (43025 series) using the matching crimp terminals (43030 series for 20-24 AWG wire). The locking ramp on the header engages the receptacle latch for secure retention."},{"question":"What locking mechanism does the Molex 430452012 use?","answer":"It uses a locking ramp on the shrouded header that engages the latch on the mating Micro-Fit 3.0 receptacle, providing positive retention against vibration and cable pull."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/430452012","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/430452012 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}}