{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1-1478981-0","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1-1478981-0","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1-1478981-0","factsUrl":"https://icsourcedirect.com/api/mcp/products/1-1478981-0","rawCanonicalId":null},"summary":{"shortDescription":"TE Greenpar SMA to SMA adapter, plug to plug, male to male, 50 Ohm, DC-18 GHz, 0.10dB insertion loss, straight, free-hanging, gold body, 500 mating cycles.","salesMarkdown":"## SMA barrel adapter — 50 Ohm, DC to 18 GHz The TE 1-1478981-0 is a straight SMA plug-to-plug adapter, male-to-male centre gender, part of the Greenpar series. It mates two SMA male connectors end-to-end — useful for extending a cable run or joining two SMA-female-terminated assemblies without a bulkhead. The adapter carries a 50 Ohm characteristic impedance and is rated to 18 GHz, with an insertion loss of 0.10dB across the band. The stainless steel body with gold finish and gold-plated brass centre contact handles 500 mating cycles before the plating wears through — enough for test-bench reconfiguration or field-swapped links, though not a permanent-install part. No official successor order code is on record. ## What the RF ratings mean in practice The 18 GHz frequency ceiling is the 1 dB compression point — above that, the return loss degrades and the adapter starts acting as a discontinuity. For a 0.10dB insertion loss at 18 GHz, the adapter contributes about 2.3% power loss; at lower frequencies the loss is proportionally smaller. The 500 mating cycle rating is a wear limit on the gold plating: after that, the brass centre contact starts to oxidise and the contact resistance drifts. For a field-installed link that mates once and stays, the cycle count is irrelevant; for a test-equipment adapter that sees daily connects, 500 cycles is about two years of regular use before replacement.","metaTitle":"TE 1-1478981-0 SMA to SMA Adapter, 50 Ohm, 18 GHz, Obsolete","metaDescription":"TE Greenpar 1-1478981-0 SMA plug-to-plug adapter, 50 Ohm, DC-18 GHz, 0.10dB insertion loss, 500 mating cycles. Obsolete — sourced to order against RFQ.","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":"Greenpar","Package":"Bulk","Features":"-","Includes":"-","Impedance":"50 Ohms","Body Finish":"Gold","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":"0.10dB","Product Status":"Obsolete","Conversion Type":"Same Series","Frequency - Max":"18 GHz","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Base Product Number":"1478981","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C ~ 165°C","Center Contact Plating":"Gold","Center Contact Material":"Brass","Convert To (Adapter End)":"SMA Plug, Male Pin","Convert From (Adapter End)":"SMA Plug, Male Pin"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/909f7c655aa22b147d1abf0d52bb07dd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the TE 1-1478981-0 SMA adapter?","answer":"The 1-1478981-0 is obsolete and sourced through independent distribution — it is quoted to order against an RFQ."},{"question":"Is 1-1478981-0 compatible with standard SMA connectors?","answer":"Yes. The adapter follows the standard SMA interface per the series designation — the plug-to-plug, male-to-male configuration mates with any compliant SMA jack or female connector. The 50 Ohm impedance and 18 GHz rating are within the standard SMA envelope."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1-1478981-0","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/1-1478981-0 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}}