{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"2081890-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"2081890-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2081890-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/2081890-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity, SMA to SMA adapter, 2081890-1, Straight, Plug to Plug, 50 Ohms, 27 GHz, Free Hanging, Threaded, Stainless Steel, Gold Plating.","salesMarkdown":"## RF Adapter Overview The TE Connectivity 2081890-1 is a straight SMA plug-to-plug adapter, a same-series barrel coupler that joins two SMA male connectors end-to-end. The stainless steel body and PTFE dielectric give it the mechanical and electrical stability needed to hold a consistent 50 Ohm line through the transition. Both centre contacts are male pins machined from beryllium copper with gold plating — a combination that handles repeated matings without galling or losing contact resistance. The 500-cycle mating life is typical for an SMA-grade interface; the gold plating keeps the contact resistance stable through those cycles. ## Mating and Installation Threaded couplings on both ends — standard SMA 1/4-36 UNEF thread — so you hand-tighten and then a quarter-turn with a wrench for the final seat. Free-hanging (in-line) style; no panel mount, no flange. It is a barrel: one SMA male cable on each side, threaded together. The straight body keeps the signal path axial, no right-angle bend to introduce a VSWR bump.","metaTitle":"TE Connectivity 2081890-1 SMA to SMA Adapter, 50 Ohm, 27 GHz","metaDescription":"TE Connectivity 2081890-1 SMA plug-to-plug adapter, 50 Ohm impedance, rated to 27 GHz. Stainless steel body, gold-plated beryllium copper contacts.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Style":"Straight","Series":"-","Package":"Bag","Features":"-","Includes":"-","Impedance":"50 Ohms","Body Finish":"-","Adapter Type":"Plug to Plug","Body Material":"Stainless Steel","Center Gender":"Male to Male","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Adapter Series":"SMA to SMA","Fastening Type":"Threaded, Threaded","Insertion Loss":"-","Product Status":"Active","Conversion Type":"Same Series","Frequency - Max":"27 GHz","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Base Product Number":"2081890","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C ~ 165°C","Center Contact Plating":"Gold","Center Contact Material":"Beryllium Copper","Convert To (Adapter End)":"SMA Plug, Male Pin","Convert From (Adapter End)":"SMA Plug, Male Pin"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.3800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/7d6fdc69ee48dbef8901867a5871700b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the frequency range of the 2081890-1?","answer":"The 2081890-1 is rated to 27 GHz maximum frequency, with a 50 Ohm characteristic impedance across the band."},{"question":"Is the 2081890-1 male or female?","answer":"The 2081890-1 has male centre pins on both ends (male to male), with threaded SMA couplings on each side. It is a plug-to-plug adapter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2081890-1","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/2081890-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}