{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"919-131J-51SX","brand":"Amphenol","brandSlug":"amphenol","productSlug":"919-131J-51SX","canonicalUrl":"https://icsourcedirect.com/amphenol/919-131J-51SX","factsUrl":"https://icsourcedirect.com/api/mcp/products/919-131J-51SX","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF MCX jack, female socket, 50 Ohms, 6 GHz, free hanging (in-line), solder contact, crimp shield, gold body, RG-178/196 cable group, 500 mating cycles, 0.1 dB insertion loss, -65°C to 165°C.","salesMarkdown":"## RF Interconnect for Tight Spaces: MCX Jack on RG-178 The 500-cycle mating life is typical for a snap-on MCX; the gold plating on both body and centre contact resists fretting corrosion through repeated connects in field-service or test-bench use. ## Cable and Termination Match This jack is specified for cable groups RG-178, 178A, 178B, 196, 196A, and M17/93-RG178 — all 50 Ohm coax with a similar dielectric diameter. The shield is terminated by crimp, the centre contact by solder. For a harness shop, that means a standard crimp tool for the braid and a soldering iron for the pin; no special die sets beyond the usual RG-178 hex crimp. The free-hanging mount means no PCB footprint to design — the cable assembly lands in-line, which simplifies routing in enclosures where a right-angle board jack would force a bend radius violation. The base product number is 91913, which covers the MCX series variants from Amphenol RF.","metaTitle":"Amphenol RF 919-131J-51SX MCX Jack, 50 Ohm, 6 GHz","metaDescription":"Amphenol RF 919-131J-51SX MCX jack, female socket, 50 Ohm impedance, 6 GHz max, 0.1 dB insertion loss, 500 mating cycles, free hanging, solder contact, crimp","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"-","Includes":"-","Impedance":"50 Ohms","Body Finish":"Gold","Cable Group":"RG-178, 178A, 178B, 196, 196A, M17/93-RG178","Body Material":"Brass","Housing Color":"Gold","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Jack, Female Socket","Fastening Type":"Snap-On","Insertion Loss":"0.1dB","Product Status":"Active","Connector Style":"MCX","Frequency - Max":"6 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"91913","Contact Termination":"Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C ~ 165°C","Center Contact Plating":"Gold","Center Contact Material":"Beryllium Copper"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.0900","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/919-131J-51SX/alternatives.json"},"ai":{"faq":[{"question":"What is the impedance of 919-131J-51SX?","answer":"The impedance is 50 Ohms, the standard for RF signal paths in telecom, test equipment, and instrumentation."},{"question":"What is the mounting style of 919-131J-51SX?","answer":"Free hanging (in-line) — it terminates to a cable, not a PCB. The shield is crimped, the centre contact soldered."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/919-131J-51SX","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/amphenol/919-131J-51SX when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T20:41:44.623Z","lastPublished":"2026-07-23T20:41:44.623Z","indexable":true}}