{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"901-9891-RFX","brand":"Amphenol","brandSlug":"amphenol","productSlug":"901-9891-RFX","canonicalUrl":"https://icsourcedirect.com/amphenol/901-9891-RFX","factsUrl":"https://icsourcedirect.com/api/mcp/products/901-9891-RFX","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF SMA receptacle, female socket, 50 Ohm, 18 GHz, panel mount flange, solder termination, nickel brass body, gold-plated beryllium copper centre contact, extended insulation, 500 mating cycles, Bulk.","salesMarkdown":"## What This SMA Receptacle Delivers The Amphenol RF 901-9891-RFX is an SMA receptacle, female socket, built for a 50 Ohm system and rated to 18 GHz — the full bandwidth of the SMA interface. The flange-mount body with threaded fastening gives a rigid panel attachment, and the extended PTFE insulation pushes the voltage standoff past the mating face, which matters in high-altitude or high-voltage RF paths where creepage distance is tight. Brass body with a nickel finish — good RF shielding and corrosion resistance for indoor and sheltered outdoor use, though not a stainless-steel body for direct marine exposure. That contact material handles repeated deflection without taking a set, and the gold plating supports the 500 mating cycle rating without fretting the signal path. Panel mount with a flange — four-hole pattern, standard SMA footprint. The shield terminates via solder to the panel or a ground plane, and the centre contact is solder-cup termination for RG-style coax. The threaded fastening type means the mating plug screws on, not just pushes, so vibration won't back it off. ## Temperature Range and Operating Environment This covers outdoor telecom cabinets, aerospace avionics bays, and industrial oven-adjacent gear. The extended insulation feature adds an extra margin against dielectric breakdown in low-pressure or high-voltage conditions. The 901-9887-RFX shares the same SMA receptacle form, 50 Ohm impedance, 18 GHz ceiling, 500 mating cycles, and flange-mount with extended insulation. The difference is the centre contact material — 901-9891-RFX uses beryllium copper, while 901-9887-RFX does not list a centre contact material in its spec. For applications requiring a known spring-grade contact alloy, the 901-9891-RFX gives you the beryllium copper spec on record.","metaTitle":"Amphenol RF 901-9891-RFX SMA Receptacle, 50 Ohm, 18 GHz","metaDescription":"Amphenol RF 901-9891-RFX SMA receptacle, female socket, panel mount flange, 50 Ohm impedance, 18 GHz max frequency, 500 mating cycles, extended insulation","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors","RF Cable Assemblies"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"Extended Insulation","Includes":"-","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"-","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Panel Mount","Connector Type":"Receptacle, Female Socket","Fastening Type":"Threaded","Insertion Loss":"-","Product Status":"Active","Connector Style":"SMA","Frequency - Max":"18 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Flange","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"901-98","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":"$13.0900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/7aa7f71a7ea4ab2eb1be264115a329c1.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/901-9891-RFX/alternatives.json"},"ai":{"faq":[{"question":"What is the impedance of 901-9891-RFX?","answer":"50 Ohm nominal, standard for SMA interfaces."},{"question":"Does 901-9891-RFX have extended insulation?","answer":"Yes — the PTFE dielectric extends past the mating interface, listed as Extended Insulation in the features."},{"question":"Where can I buy 901-9891-RFX?","answer":"Sourced to order against your BOM quantity. Availability and pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/901-9891-RFX","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/901-9891-RFX 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}}