{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0039299043","brand":"Molex","brandSlug":"molex","productSlug":"0039299043","canonicalUrl":"https://icsourcedirect.com/molex/0039299043","factsUrl":"https://icsourcedirect.com/api/mcp/products/0039299043","rawCanonicalId":null},"summary":{"shortDescription":"Molex Mini-Fit Jr 5566 series header, 0039299043, 4-circuit dual-row, 4.20 mm pitch, through-hole solder termination, shrouded 4-wall with board lock and locking ramp, tin-plated contacts, natural PA66 housing.","salesMarkdown":"## 4.20 mm Pitch, 4-Circuit Dual-Row Header — Board Fit and Retention The 0039299043: The 0.165\" (4.20 mm) row spacing matches the standard Mini-Fit Jr receptacle footprint, so the board layout engineer can drop this into a 2×2 pattern without recalculating keep-outs. The shrouded 4-wall design and locking ramp prevent mis-mating and hold the connector pair engaged under vibration. ROHS3 compliant per the ledger. ## Mating and Termination — Mini-Fit Jr Receptacle Compatibility","metaTitle":"Molex 0039299043 Mini-Fit Jr 5566 Header, 4 Pos, 4.2mm","metaDescription":"Molex 0039299043 Mini-Fit Jr 5566 header, 4 positions, 4.20mm pitch, dual-row, through-hole, tin-plated, shrouded with board lock. Active production.","metaKeywords":null},"attributes":{"series":"Mini-Fit Jr 5566","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"Molex","Style":"Board to Cable/Wire","Series":"Mini-Fit Jr 5566","Package":"Tray","Features":"Board Lock","Shrouding":"Shrouded - 4 Wall","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)","Product Status":"Active","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":"4","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":"Tin","Contact Length - Mating":"-","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-2","Contact Finish Thickness - Post":"35.0µin (0.90µm)","Contact Finish Thickness - Mating":"35.4µin (0.90µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0300","priceTiers":[{"qty":1,"price":"$1.03000","currency":"USD"},{"qty":10,"price":"$0.84800","currency":"USD"},{"qty":80,"price":"$0.70700","currency":"USD"},{"qty":945,"price":"$0.56560","currency":"USD"},{"qty":4900,"price":"$0.49490","currency":"USD"},{"qty":10000,"price":"$0.47016","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/4459191f5346222fed137ad5f932e40e.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/0039299043/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0039299043","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/0039299043 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}}