{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5054321201","brand":"Molex","brandSlug":"molex","productSlug":"5054321201","canonicalUrl":"https://icsourcedirect.com/molex/5054321201","factsUrl":"https://icsourcedirect.com/api/mcp/products/5054321201","rawCanonicalId":null},"summary":{"shortDescription":"Molex Micro-Lock PLUS 505432, receptacle housing, 12 positions, 2 rows, 1.25 mm pitch, free hanging, crimp termination, latch holder, black PBT, -40°C to 105°C.","salesMarkdown":"The Molex 5054321201 is a 12-position receptacle housing from the Micro-Lock PLUS 505432 series. It is a free-hanging, in-line housing designed for wire-to-wire or wire-to-board interconnect in applications where vibration resistance matters — the latch holder on the fastening type provides a secondary lock that keeps the pair mated under road buzz or machine shake. The 1.25 mm pitch keeps the assembly compact, while the dual-row layout handles moderate circuit counts in a narrow envelope. This is the female side of the connection; it accepts the matching Micro-Lock PLUS crimp terminals (sold separately) and mates with the corresponding pin header. The 1.25 mm pitch is tight enough for a dense harness but still allows individual wire termination with standard crimp tooling — no micro-coax or specialty press needed. The 12 positions in two rows mean the housing is wider than a single-row 12-position but shorter in length, which helps when routing wires into a confined junction box. The latch holder is the critical detail: it locks the housing to the mating header with a positive snap, not just friction. A friction-only mate on a wire-to-wire splice in a vehicle or industrial cabinet will walk apart over time — the latch holder prevents that. ## Mating and Termination This is a crimp-termination housing — the female socket contacts are ordered separately and must be crimped onto the wire before insertion. The housing itself has no contacts; the Note field explicitly states Contacts Not Included. The matching male header for this receptacle is the Micro-Lock PLUS pin header with the same 1.25 mm pitch and 12-position, dual-row layout. The latch holder on the housing engages with the corresponding latch on the header to provide the secondary lock.","metaTitle":"Molex Micro-Lock PLUS 5054321201, 12-Pos Receptacle Housing","metaDescription":"Molex 5054321201 Micro-Lock PLUS receptacle housing, 12 positions, 1.25 mm pitch, dual row, latch holder. Contacts not included.","metaKeywords":null},"attributes":{"series":"Micro-Lock PLUS 505432","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Wire-to-Board Connectors","Connector Housings"],"specifications":{"Mfr":"Molex","Note":"Contacts Not Included","Color":"Black","Pitch":"0.049\\\" (1.25mm)","Series":"Micro-Lock PLUS 505432","Package":"Bulk","Features":"-","Row Spacing":"-","Contact Type":"Female Socket","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Receptacle","Fastening Type":"Latch Holder","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Base Product Number":"505432","Contact Termination":"Crimp","Insulation Material":"Polybutylene Terephthalate (PBT)","Number of Positions":"12","Operating Temperature":"-40°C ~ 105°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3900","priceTiers":[{"qty":1,"price":"$0.39000","currency":"USD"},{"qty":10,"price":"$0.31700","currency":"USD"},{"qty":100,"price":"$0.23220","currency":"USD"},{"qty":1000,"price":"$0.18470","currency":"USD"},{"qty":2500,"price":"$0.16887","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/7dfde34c6fd179d167d550ead1b1241b.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/5054321201/alternatives.json"},"ai":{"faq":[{"question":"Does the 5054321201 include contacts?","answer":"No. The 5054321201 is a receptacle housing only — contacts are not included. You must order the matching Micro-Lock PLUS female crimp terminals separately."},{"question":"What is the pitch of 5054321201?","answer":"The pitch is 0.049\" (1.25 mm). This is the center-to-center spacing between adjacent contact positions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/5054321201","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/5054321201 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}}