{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMA(R)-A-JJ","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"SMA~1R~2-A-JJ","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/SMA~1R~2-A-JJ","factsUrl":"https://icsourcedirect.com/api/mcp/products/SMA(R)-A-JJ","rawCanonicalId":null},"summary":{"shortDescription":"Hirose RP-SMA jack to jack adapter, SMA(R)-A-JJ, straight, 50 Ohm, 18 GHz, 1000 mating cycles, gold-plated beryllium copper center contacts, passivated stainless steel body.","salesMarkdown":"## RP-SMA adapter for 50-ohm microwave paths through 18 GHz The Hirose SMA(R)-A-JJ is a straight, in-line RP-SMA jack to jack adapter — two female-threaded interfaces, each with a male center pin. It converts one RP-SMA connection to another in the same series, so it is useful for extending a cable run, reversing gender on a bulkhead, or linking two RP-SMA-terminated components without an extra cable. The reverse-polarity (RP) designation means the center conductor gender is swapped relative to standard SMA: the jack body has a male pin, not a female socket. The passivated stainless steel body and gold finish resist corrosion in lab, field, or production test environments. ## What the 18 GHz and 1000-cycle ratings mean for your link The 18 GHz maximum frequency is the adapter's usable ceiling — above that, the interface geometry starts to support higher-order modes and the VSWR degrades. For a 6 GHz Wi-Fi backhaul or a 10 GHz satellite IF chain, this adapter has headroom; at 24 GHz it is out of spec. The 1000 mating cycle rating comes from the gold-over-beryllium copper center contacts, which resist the fretting and wear that tin or brass contacts would show after a few hundred thread engagements. That cycle life suits it for test equipment where the adapter is swapped between DUTs daily, or for field-deployed links that see occasional reconnections. The threaded coupling ensures the pair stays mated under vibration — no snap-on retention here.","metaTitle":"Hirose SMA(R)-A-JJ RP-SMA Jack to Jack Adapter, 50 Ohm","metaDescription":"Hirose SMA(R)-A-JJ RP-SMA jack to jack adapter, 50 Ohm, 18 GHz max, 1000 mating cycles. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Style":"Straight","Series":"RP-SMA","Package":"Bulk","Features":"-","Includes":"-","Impedance":"50 Ohms","Body Finish":"Gold; Passivated","Adapter Type":"Jack to Jack","Body Material":"Stainless Steel","Center Gender":"Male to Male","Mating Cycles":"1000","Mounting Type":"Free Hanging (In-Line)","Adapter Series":"RP-SMA to RP-SMA","Fastening Type":"Threaded, Threaded","Insertion Loss":"-","Product Status":"Active","Conversion Type":"Same Series","Frequency - Max":"18 GHz","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Base Product Number":"SMA","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-40°C ~ 85°C","Center Contact Plating":"Gold","Center Contact Material":"Beryllium Copper","Convert To (Adapter End)":"RP-SMA Jack, Male Pin","Convert From (Adapter End)":"RP-SMA Jack, Male Pin"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$44.9900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/179e7c21b7b87ed04fa5dd58a10c99bd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SMA(R)-A-JJ compatible with standard SMA connectors?","answer":"No — this is an RP-SMA (reverse-polarity) adapter, where the jack body has a male center pin. A standard SMA jack has a female socket, so the two will not mate correctly. The threaded shell is the same size, but the center conductors are opposite genders."},{"question":"What is the difference between RP-SMA and SMA?","answer":"In standard SMA, the jack has a female center socket and the plug has a male pin. In RP-SMA, the genders are reversed: the jack has a male pin and the plug has a female socket. This adapter is RP-SMA jack to RP-SMA jack (male pin on both ends), so it will not mate with standard SMA jacks."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/SMA~1R~2-A-JJ","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/hirose-electric-co-ltd/SMA~1R~2-A-JJ 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}}