{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0039299184","brand":"Molex","brandSlug":"molex","productSlug":"0039299184","canonicalUrl":"https://icsourcedirect.com/molex/0039299184","factsUrl":"https://icsourcedirect.com/api/mcp/products/0039299184","rawCanonicalId":null},"summary":{"shortDescription":"Molex Mini-Fit Jr 5566 header, order code 0039299184, 18 positions, dual row, 0.165\" (4.20mm) pitch, gold-plated mating contacts, through-hole, solder termination, shrouded - 4 wall, locking ramp.","salesMarkdown":"## 18-position member of the Mini-Fit Jr 5566 line The 0039299184 is the 18-circuit member of Molex's Mini-Fit Jr 5566 header series, a board-to-cable/wire connector with a 0.165\" (4.20mm) pitch. Gold-plated mating contacts, through-hole mounting, and a shrouded 4-wall housing with a locking ramp provide secure retention in industrial and telecom applications. ## Board lock and shrouding for vibration resistance The board lock anchors the header during wave solder and resists shear from cable strain. The 4-wall shroud protects the male pins and guides the mating receptacle, reducing misalignment risk. The locking ramp provides an audible click when mated with the corresponding Mini-Fit Jr receptacle — you should hear it seat before the assembly leaves the bench.","metaTitle":"Molex 0039299184 Mini-Fit Jr Header, 18 Pos, 4.20mm","metaDescription":"Molex Mini-Fit Jr 5566 header 0039299184: 18 positions, dual row, 4.20 mm pitch, gold mating contacts, through-hole, locking ramp. Active production.","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":"Mini-Fit Jr 5566","Features":"Board Lock","Packaging":"Tray","Shrouding":"Shrouded - 4 Wall","Part Status":"Active","Termination":"Solder","Applications":"General Purpose, Industrial, 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":"0.165\\\" (4.20mm)","Voltage Rating":"-","lifecycle_stage":"unknown","Contact Material":"Brass","Insulation Color":"Natural","Insulation Height":"0.504\\\" (12.80mm)","Ingress Protection":"-","Base Product Number":"003929","Insulation Material":"Polyamide (PA66), Nylon 6/6","Number of Positions":"18","Row Spacing - Mating":"0.165\\\" (4.20mm)","Contact Finish - Post":"Tin","Contact Length - Post":"0.138\\\" (3.50mm)","Current Rating (Amps)":"-","Operating Temperature":"-","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Gold","Contact Length - Mating":"-","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-2","Contact Finish Thickness - Post":"100.0µin (2.54µm)","Contact Finish Thickness - Mating":"30.0µin (0.76µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.8500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/b7e09f0a173e5b0b8ada82184bda7890.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/0039299184/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation is available for the 0039299184?","answer":"The insulation material is PA66 (Nylon 6/6) rated UL94 V-2. Contact finish on the mating side is gold, post is tin — both meet standard RoHS requirements for the Mini-Fit Jr series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0039299184","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/0039299184 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}}