{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1408393-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1408393-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1408393-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/1408393-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity SMA to QMA between-series adapter, 1408393-1, Straight, Plug to Plug, 50 Ohm impedance, DC to 6 GHz, Gold center contact, Bulk.","salesMarkdown":"The TE Connectivity 1408393-1 is a between-series coaxial adapter that converts an SMA male plug interface to a QMA male plug interface in a straight, in-line body. The center contact is gold-plated beryllium copper for low and stable contact resistance across the passband; the brass body gets a nickel finish. Dielectric is PTFE, which keeps insertion loss predictable through the transition. Mating cycles are rated at 100, typical for a test-equipment or field-swap adapter where the QMA side sees repeated connect-disconnect cycles. ## Compatibility & Interface Notes The SMA side is a standard threaded male plug (male pin), mates with any SMA female jack (receptacle or bulkhead). The QMA side is a male plug with a male pin, mates with a QMA female jack — the snap-on retention ring locks with an audible click. The two interfaces are not mechanically interchangeable: an SMA plug does not fit a QMA jack without this adapter. The 100-cycle rating applies to the QMA side; the SMA threaded interface, if mated carefully, will outlast the QMA snap-lock under normal use.","metaTitle":"TE 1408393-1 SMA to QMA Adapter, 50 Ohm, 6 GHz, Obsolete","metaDescription":"TE 1408393-1 between-series adapter: SMA plug to QMA plug, 50 Ohm, DC-6 GHz, gold-plated beryllium copper contacts.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Style":"Straight","Series":"-","Package":"Bulk","Features":"-","Includes":"-","Impedance":"50Ohm","Body Finish":"Nickel","Adapter Type":"Plug to Plug","Body Material":"Brass","Center Gender":"Male to Male","Mating Cycles":"100","Mounting Type":"Free Hanging (In-Line)","Adapter Series":"SMA to QMA","Fastening Type":"Snap-On, Threaded","Insertion Loss":"-","Product Status":"Obsolete","Conversion Type":"Between Series","Frequency - Max":"6 GHz","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Base Product Number":"1408393","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-","Center Contact Plating":"Gold","Center Contact Material":"Beryllium Copper","Convert To (Adapter End)":"QMA Plug, Male Pin","Convert From (Adapter End)":"SMA Plug, Male Pin"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$24.3500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/b4208bb0b80f07743aaa935268c8d450.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1408393-1","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/te-connectivity-amp-connectors/1408393-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}