{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"901-9877-RFX","brand":"Amphenol","brandSlug":"amphenol","productSlug":"901-9877-RFX","canonicalUrl":"https://icsourcedirect.com/amphenol/901-9877-RFX","factsUrl":"https://icsourcedirect.com/api/mcp/products/901-9877-RFX","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF SMA plug, 901-9877-RFX, 50 Ohm, male pin, 12.4 GHz max, crimp shield / solder contact, weatherproof, bulk pack.","salesMarkdown":"## SMA Plug for RG-174-Class Coax — Field-Install Kit The 901-9877-RFX: It ships as a complete field-install kit: connector body, contact, ferrule, and heat shrink included. The cable group covers RG-174, 188, 188A, 316, LMR-100, and M17/119-RG174 — the common flexible coax sizes for short-run interconnects in instrumentation, telecom, and outdoor antenna feeds. Dielectric is PTFE. The shield terminates via crimp, the center contact is soldered. Threaded fastening gives a vibration-resistant mate, and the weatherproof ingress rating means it holds up in damp or washdown environments — not just a dry rack. ## Why 12.4 GHz Instead of 18 GHz A standard SMA connector is typically rated to 18 GHz. This 901-9877-RFX is spec'd to 12.4 GHz max — the limit comes from the cable-group-specific design for RG-174 and similar flexible coax, which has higher loss and impedance variation above that band. For sub-12.4 GHz applications on RG-174, it's a clean match. If you need the full 18 GHz bandwidth on semi-rigid cable, the 901-9867-RFX (gold body, solder shield, RG-405 semi-rigid) is the sibling to look at. The 901-9881-RFX shares the same body finish, cable group, and frequency ceiling, but swaps the contact/ferrule/heat shrink for an end cap — it's a termination cap, not a cable plug. The 901-9877-RFX is the one you want for making up a cable assembly. ## Field-Install Reality: Crimp Shield, Solder Center Termination is a hybrid: the shield braid is crimped with the included ferrule, the center conductor is soldered into the pin. That's standard for this class of SMA — the crimp gives consistent shield termination impedance, the solder joint gives a reliable DC connection. The heat shrink covers the crimp area for strain relief and weather sealing. 500 mating cycles is typical for SMA; the gold-on-brass center contact handles repeated connect-disconnect without galling. ## Temperature and Environment The PTFE dielectric holds stable impedance across that range. Weatherproof rating means the threaded coupling and O-ring seal keep moisture out when mated to a matching SMA jack. Hand-tight should seal it; a half-turn loose is a dropout in wet conditions.","metaTitle":"Amphenol RF 901-9877-RFX SMA Plug, 50 Ohm, 12.4 GHz, RG-174","metaDescription":"Amphenol RF 901-9877-RFX SMA plug, male pin, 50 Ohm, 12.4 GHz max frequency. Weatherproof, crimp/solder termination, 500 mating cycles.","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":"-","Includes":"4 pcs - 1 Connector, 1 Contact, 1 Ferrule, 1 Heat Shrink","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-174, 188, 188A, 316, LMR-100, M17/119-RG174","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Plug, Male Pin","Fastening Type":"Threaded","Insertion Loss":"-","Product Status":"Active","Voltage Rating":"375 V","Connector Style":"SMA","Frequency - Max":"12.4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"Weatherproof","Shield Termination":"Crimp","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":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.3000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/f1ae7cb215b012abd2fbd633f3ece6c4.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/901-9877-RFX/alternatives.json"},"ai":{"faq":[{"question":"Is the 901-9877-RFX compatible with RG-174 cable?","answer":"Yes. The 901-9877-RFX is designed for RG-174, 188, 188A, 316, LMR-100, and M17/119-RG174 cable groups. It includes the ferrule and heat shrink for a proper crimp/solder termination on those coax sizes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/901-9877-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/901-9877-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}}