{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"221789-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"221789-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/221789-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/221789-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity SMA jack, female socket, 50 Ohm, 4 GHz, 0.3 dB insertion loss, 335 V, 500 mating cycles, through hole, solder termination, gold body.","salesMarkdown":"The 221789-3: This is a single-port, panel-mount or PCB-mount RF interconnect suited for test equipment, telecom infrastructure, and instrumentation where a reliable 50 Ohm launch up to 4 GHz is needed. The 500 mating cycles mean the gold-on-gold contact interface will hold its performance across repeated connects in a test rack or field-deployed system. The threaded coupling (per the SMA standard) locks the pair against vibration loosening — important for any environment where the cable sees movement. ## Obsolete — Sourcing Reality The 221789-3 is officially obsolete per TE Connectivity's lifecycle status. There is no documented direct replacement or cross-reference in the evidence. Through-hole mounting with solder termination for both the shield and the center contact. The threaded fastening requires a mating SMA plug with a hex nut or knurled coupling — no push-on or bayonet lock.","metaTitle":"TE Connectivity 221789-3 SMA Jack, 50 Ohm, 4 GHz","metaDescription":"TE Connectivity 221789-3 SMA jack, female socket, 50 Ohm, 4 GHz, 0.3 dB insertion loss, 500 mating cycles, through hole, gold body.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Series":"-","Package":"Bulk","Features":"-","Includes":"-","Impedance":"50Ohm","Body Finish":"Gold","Cable Group":"-","Body Material":"Brass","Housing Color":"Gold","Mating Cycles":"500","Mounting Type":"Through Hole","Connector Type":"Jack, Female Socket","Fastening Type":"Threaded","Insertion Loss":"0.3dB","Product Status":"Obsolete","Voltage Rating":"335 V","Connector Style":"SMA","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"221789","Contact Termination":"Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Beryllium Copper"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.8700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/8dbdadacb93c98ce07d167854d0edfa0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the equivalent or replacement for 221789-3?","answer":"A form-fit-function substitute would need to match the SMA jack interface, 50 Ohm impedance, 4 GHz bandwidth, through-hole mounting, and gold body finish. Verify the footprint and mating half before specifying an alternative."},{"question":"Where can I buy 221789-3?","answer":"As an obsolete part, 221789-3 is sourced through independent surplus and broker channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/221789-3","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/221789-3 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}}