{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0039299187","brand":"Molex","brandSlug":"molex","productSlug":"0039299187","canonicalUrl":"https://icsourcedirect.com/molex/0039299187","factsUrl":"https://icsourcedirect.com/api/mcp/products/0039299187","rawCanonicalId":null},"summary":{"shortDescription":"Molex Mini-Fit Jr 5566, 0039299187, Board to Cable/Wire Header, 18 Positions, 2 Rows, 0.165\" (4.20mm) Pitch, Through Hole, Solder Termination, Tin Plating, Board Lock, Shrouded, UL94 V-0, Tray","salesMarkdown":"## 18-Position Dual-Row at 4.20 mm Pitch The 0039299187: This is a 18-position, dual-row vertical header from the Mini-Fit Jr 5566 series — the 4.20 mm pitch is the board footprint anchor and sets the per-contact current ceiling. The through-hole termination and board lock provide mechanical retention during soldering and against cable strain in service. ## Board Lock and Locking Ramp for Vibration In a panel or enclosure subject to vibration — think industrial cabinets or telecom racks — these keep the mated pair from fretting open. ## Compliance and Material Baseline Natural (off-white) insulation color, typical for the Mini-Fit Jr series.","metaTitle":"Molex 0039299187 Mini-Fit Jr Header 18-Pin 4.2mm Vertical","metaDescription":"Molex Mini-Fit Jr 5566 header, 18 positions, 4.20mm pitch, dual-row, vertical through-hole, board lock, tin plating, UL94 V-0, 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":"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":"Tin","Contact Length - Mating":"-","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"35.0µin (0.90µm)","Contact Finish Thickness - Mating":"35.4µin (0.90µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5100","priceTiers":[{"qty":1,"price":"$3.51000","currency":"USD"},{"qty":10,"price":"$3.08900","currency":"USD"},{"qty":80,"price":"$2.45688","currency":"USD"},{"qty":945,"price":"$2.03565","currency":"USD"},{"qty":4900,"price":"$1.82507","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/e005f6ae6aa6e76d34b37a6118eb3cce.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/0039299187/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0039299187","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/0039299187 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}}