{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0512381211","brand":"Molex","brandSlug":"molex","productSlug":"0512381211","canonicalUrl":"https://icsourcedirect.com/molex/0512381211","factsUrl":"https://icsourcedirect.com/api/mcp/products/0512381211","rawCanonicalId":null},"summary":{"shortDescription":"Molex CRC 51238 receptacle housing, 0512381211, 12 positions, 4 rows, 3.00mm pitch, panel mount, latch lock, crimp termination, black PBT, -40°C to 105°C.","salesMarkdown":"## 12-Position, 4-Row Housing for CRC 51238 Harnesses The Molex 0512381211 is a 12-circuit receptacle housing from the CRC 51238 series, arranged in 4 rows on a 3.00 mm pitch. It is a panel-mount, latch-lock housing designed for wire-to-board or wire-to-wire applications where a compact, multi-row power or signal interconnect is needed — common in automotive, industrial control, and appliance harness assemblies. ## What the 4-Row, 12-Position Layout Means for Your Build The 12 positions across 4 rows means the mating header will have a corresponding 4-row pin field, with 0.118\" (3.00 mm) row spacing. ## Contacts Are Not Included — Plan Your Terminal Order A common procurement trip-up: the 0512381211 housing ships without contacts. The insulation material is glass-filled PBT, which holds up to the crimping process and the 105°C operating ceiling without creep. ## Mating Half and Panel Mounting The panel-mount feature allows the housing to be fixed to a chassis or enclosure panel, which is useful when the harness needs a serviceable disconnect point rather than a free-hanging connection. Confirm the panel cutout dimensions from the series drawing before committing the layout.","metaTitle":"Molex CRC 51238 0512381211, 12-Pos Receptacle Housing","metaDescription":"Molex 0512381211 CRC 51238 receptacle housing, 12 positions, 4 rows, 3.00mm pitch, latch lock, panel mount, -40°C to 105°C. Contacts not included. Active","metaKeywords":null},"attributes":{"series":"CRC 51238","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":"0.118\\\" (3.00mm)","Series":"CRC 51238","Package":"Bulk","Features":"-","Row Spacing":"0.118\\\" (3.00mm)","Contact Type":"Female Socket","Mounting Type":"Panel Mount","Connector Type":"Receptacle","Fastening Type":"Latch Lock","Number of Rows":"4","Product Status":"Active","lifecycle_stage":"unknown","Base Product Number":"051238","Contact Termination":"Crimp","Insulation Material":"Polybutylene Terephthalate (PBT), Glass Filled","Number of Positions":"12","Operating Temperature":"-40°C ~ 105°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.0900","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.09000","currency":"USD"},{"qty":10,"price":"$4.48300","currency":"USD"},{"qty":100,"price":"$3.56580","currency":"USD"},{"qty":1000,"price":"$2.95448","currency":"USD"},{"qty":2500,"price":"$2.75072","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/15903759e860ef0278cb80de29b9bf86.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does Molex 0512381211 come with contacts?","answer":"No. The 0512381211 housing ships without contacts — the spec note explicitly states \"Contacts Not Included.\" You must order the matching female socket crimp terminals separately for the CRC 51238 series."},{"question":"What is the mating connector for Molex 0512381211?","answer":"This receptacle housing mates with the corresponding CRC 51238 series header (male pin). The latch lock on the housing engages the header's locking ramp. Confirm the exact header part number from the series documentation."},{"question":"Where can I buy Molex 0512381211?","answer":"This part is active and sourced to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0512381211","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/0512381211 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}}