{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1-5221128-0","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1-5221128-0","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1-5221128-0","factsUrl":"https://icsourcedirect.com/api/mcp/products/1-5221128-0","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity BNC plug, male pin, 50 Ohm, 4 GHz, 0.2 dB insertion loss, crimp termination, RG-58 cable group, nickel body, gold centre contact, 500 mating cycles, -55°C to 85°C.","salesMarkdown":"## BNC Plug for RG-58 — What This Connector Does The 1-5221128-0: It ships as a 3-piece kit: the connector body, the centre contact, and the ferrule, so you have everything to complete one termination. The 0.2 dB insertion loss at rated frequency is typical for a crimp-style BNC at this price point — the signal penalty is low enough that it won't eat your link budget in a short cable run. ## Cable Fit and Termination — RG-58 Only, Crimp It This plug is built for the RG-58 cable group — RG-58, 58A, 58B, 58C. The included ferrule compresses over the braid; the centre pin crimps onto the signal conductor. ## Obsolete — Sourcing the 1-5221128-0 Today The 1-5221128-0 is listed as obsolete. ## What It Won't Do — Cable and Compatibility Limits This plug is designed for the RG-58 cable group only. It is not compatible with RG-59 or RG-6 — the dielectric diameters and impedance differ, and the crimp ferrule will not fit. The bayonet lock is not a threaded coupling — it will not hold against the same vibration or pull force as an N-type or TNC connector.","metaTitle":"TE Connectivity 1-5221128-0 BNC Plug, 50 Ohm, 4 GHz","metaDescription":"TE Connectivity 1-5221128-0 BNC plug, male pin, 50 Ohm, 4 GHz max, 0.2 dB loss, RG-58 cable group. 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","Series":"-","Package":"Bulk","Features":"-","Includes":"3 pcs - 1 Connector, 1 Contact, 1 Ferrule","Impedance":"50 Ohms","Body Finish":"Nickel","Cable Group":"RG-58, 58A, 58B, 58C","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Plug, Male Pin","Fastening Type":"Bayonet Lock","Insertion Loss":"0.2dB","Product Status":"Obsolete","Voltage Rating":"500 V","Connector Style":"BNC","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"5221128","Contact Termination":"Crimp","Dielectric Material":"Polyethylene (PE)","Operating Temperature":"-55°C ~ 85°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.8100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/8e92a7703e590f9bdb84c8d243034a4e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can 1-5221128-0 be used with RG-58A cable?","answer":"Yes, the 1-5221128-0 is specified for the RG-58 cable group, which includes RG-58A. The crimp ferrule and centre contact dimensions match that cable diameter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1-5221128-0","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/1-5221128-0 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}}