{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0039012165","brand":"Molex","brandSlug":"molex","productSlug":"0039012165","canonicalUrl":"https://icsourcedirect.com/molex/0039012165","factsUrl":"https://icsourcedirect.com/api/mcp/products/0039012165","rawCanonicalId":null},"summary":{"shortDescription":"Molex Mini-Fit Jr 5557 series, 0039012165, 16-circuit receptacle housing, 4.20mm pitch, dual-row, natural PA66, latch lock, free-hanging, crimp termination, contacts not included.","salesMarkdown":"## 16-circuit Mini-Fit Jr receptacle — contacts sold separately The Molex 0039012165 is a 16-circuit receptacle housing from the Mini-Fit Jr 5557 series, the workhorse wire-to-board power interconnect family used in ATX power supplies, automotive harnesses, and industrial control cabinets. The latch lock on each end provides an audible click when fully mated — the primary retention against vibration in a harness assembly. This is a housing only — the female socket crimp terminals are ordered separately. ## What it mates with and how it terminates This receptacle housing mates with the Mini-Fit Jr 4.20mm pitch pin headers — the standard through-hole or SMT headers in the 5566/5569 series. The latch lock engages with the header's locking ramp; the pair stays mated under vibration without a secondary screw or clip. Termination is crimp-style: the terminals are inserted into the housing cavities after crimping onto the wire, and the housing's internal tangs hold each terminal in place. The free-hanging (in-line) mount means this housing sits on the wire harness side, not on the PCB.","metaTitle":"Molex Mini-Fit Jr 0039012165, 16-circuit receptacle","metaDescription":"Molex Mini-Fit Jr 5557 receptacle housing, 16 circuits, 4.20mm pitch, dual-row, latch lock. Contacts not included — order 44476-1112 terminals separately.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Wire-to-Board Connectors"],"specifications":{"Mfr":"Molex","Note":"Contacts Not Included","Color":"Natural","Pitch":"0.165\\\" (4.20mm)","Series":"Mini-Fit Jr 5557","Features":"-","Packaging":"Bulk","Part Status":"Active","Row Spacing":"0.165\\\" (4.20mm)","Contact Type":"Female Socket","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Receptacle","Fastening Type":"Latch Lock","Number of Rows":"2","lifecycle_stage":"unknown","Base Product Number":"003901","Contact Termination":"Crimp","Insulation Material":"Polyamide (PA66), Nylon 6/6","Number of Positions":"16","Operating Temperature":"-40°C ~ 105°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/695fbab630b039de2ba43719b54a3415.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What pitch does 0039012165 have?","answer":"The 0039012165 has a 4.20mm pitch between contacts, with the same 4.20mm row spacing on the dual-row layout."},{"question":"How many circuits does 0039012165 have?","answer":"16 circuits arranged in a 2x8 dual-row configuration."},{"question":"What is the mating connector for 0039012165?","answer":"This receptacle mates with any Mini-Fit Jr 4.20mm pitch pin header in the 5566 or 5569 series — through-hole or SMT, straight or right-angle, in the same 16-circuit dual-row layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0039012165","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/0039012165 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}