{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"919-389P-51A","brand":"Amphenol","brandSlug":"amphenol","productSlug":"919-389P-51A","canonicalUrl":"https://icsourcedirect.com/amphenol/919-389P-51A","factsUrl":"https://icsourcedirect.com/api/mcp/products/919-389P-51A","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF MCX plug, male pin, 50 Ohm, 6 GHz, snap-on, for RG-178/196, solder contact, crimp shield, nickel body, gold center contact, 500 mating cycles.","salesMarkdown":"## MCX Snap-On Plug for RG-178/196 — 50 Ohm to 6 GHz The 919-389P-51A is an Amphenol RF MCX-series plug connector, configured as a male pin with snap-on coupling. The connector terminates to RG-178, RG-178A, RG-178B, RG-196, RG-196A, or M17/93-RG178 cable via a solder contact and crimped shield termination. ## What the 6 GHz and 500-Cycle Ratings Mean The 6 GHz frequency ceiling is the practical limit for this MCX interface — beyond that, the snap-on geometry and dielectric materials (POM acetal and PTFE) introduce impedance discontinuities that degrade return loss. The 500 mating-cycle rating is typical for a snap-on RF connector; the gold-plated centre contact resists wear through repeated connect-disconnect cycles in test setups or field-swappable modules. The nickel-plated brass body provides adequate RF shielding for indoor and controlled-environment use, though it lacks the corrosion resistance of stainless for outdoor or marine deployment. ## Kit Contents and Field Assembly The end cap and ferrule are crimped over the cable braid after the centre conductor is soldered to the pin.","metaTitle":"919-389P-51A MCX Plug, 50 Ohm, 6 GHz, Snap-On, RG-178","metaDescription":"MCX plug, male pin, 50 Ohm, 6 GHz max, snap-on coupling, for RG-178/196 cable. Solder contact, crimp shield. Active production, quoted to order.","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":"4 pcs - 1 Connector, 1 End Cap, 1 Ferrule, 1 Insulator","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-178, 178A, 178B, 196, 196A, M17/93-RG178","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line), Right Angle","Connector Type":"Plug, Male Pin","Fastening Type":"Snap-On","Insertion Loss":"-","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":"91938","Contact Termination":"Solder","Dielectric Material":"Polyoxymethylene (POM) Acetal, Polytetrafluoroethylene (PTFE)","Operating Temperature":"-40°C~85°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.8300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/24e07d6155d78bf4f15c3a568afb9816.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/919-389P-51A/alternatives.json"},"ai":{"faq":[{"question":"What cable does 919-389P-51A work with?","answer":"It is designed for RG-178, RG-178A, RG-178B, RG-196, RG-196A, and M17/93-RG178 cable groups. The centre contact is soldered; the shield is crimped via the included ferrule."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/919-389P-51A","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/919-389P-51A 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}}