{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"221128-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"221128-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/221128-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/221128-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity BNC plug, 221128-1, 50 Ohm, 4 GHz, crimp termination for RG-58 cable, gold center contact, bayonet lock, 500 mating cycles.","salesMarkdown":"## BNC Plug for RG-58 — 50 Ohm, 4 GHz Signal Path The center contact is brass with gold plating, the zinc body gets a nickel finish, and the dielectric is polyethylene. A bayonet lock provides quick, secure mating with a standard BNC jack. Rated for 500 mating cycles and 500 V, this connector suits test equipment, instrumentation, and low-power RF interconnects where a field-terminable, 50 Ohm BNC is needed. This plug is built for the RG-58 cable group (RG-58, 58A, 58B, 58C) — a common 50 Ohm coax. Both the center pin and the outer braid are crimp-terminated, which gives a consistent, gas-tight connection without solder. The shield termination is also crimp, so a single hex crimp tool for the ferrule handles the braid. Free-hanging (in-line) mounting means it mates to a bulkhead jack or another in-line connector without panel hardware.","metaTitle":"TE Connectivity 221128-1 BNC Plug, 50 Ohm, 4 GHz, Obsolete","metaDescription":"TE Connectivity 221128-1 BNC plug, 50 Ohm, 4 GHz, for RG-58 cable. 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":"-","Impedance":"50 Ohms","Body Finish":"Nickel","Cable Group":"RG-58, 58A, 58B, 58C","Body Material":"Zinc","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":"221128","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":"$11.3900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/efb02254a8883d794e84d44e2544bbf7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the impedance of the 221128-1?","answer":"The 221128-1 is a 50 Ohm BNC plug, rated to 4 GHz maximum frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/221128-1","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/221128-1 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}}