{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1-221128-0","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1-221128-0","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1-221128-0","factsUrl":"https://icsourcedirect.com/api/mcp/products/1-221128-0","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity BNC plug, male pin, 50 Ohm, crimp termination for RG-58 cable, 4 GHz max, 500 mating cycles, nickel-plated zinc body, gold-plated brass centre contact, bulk.","salesMarkdown":"## BNC plug, 50 Ohm, for RG-58 — 1-221128-0 The TE Connectivity 1-221128-0 is a BNC plug with a male pin centre contact, designed for 50 Ohm systems and crimp termination onto RG-58, 58A, 58B, or 58C cable. It handles signals up to 4 GHz with a rated insertion loss of 0.2 dB, and the bayonet lock gives you a quick quarter-turn mate that holds under vibration. The zinc body gets a nickel finish, the brass centre contact is gold-plated, and the dielectric is polyethylene. ## Obsolete — sourcing via surplus channel No official successor part number is listed. This plug is built for RG-58 family coax (RG-58, 58A, 58B, 58C) — the most common thin 50 Ohm cable for test leads, patch panels, and short-run RF interconnects. The free-hanging (in-line) body mates with any standard BNC jack or bulkhead receptacle. ## RF performance and mechanical life Rated to 4 GHz with 0.2 dB insertion loss.","metaTitle":"TE Connectivity 1-221128-0 BNC Plug, 50 Ohm, 4 GHz, RG-58","metaDescription":"1-221128-0 BNC plug, male pin, 50 Ohm, 4 GHz max, 500 mating cycles. Crimp termination for RG-58 cable. Obsolete – sourced to order. Request quote.","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":"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":"$7.6900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/efb02254a8883d794e84d44e2544bbf7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the impedance of 1-221128-0?","answer":"The 1-221128-0 is a 50 Ohm BNC plug, matching the standard impedance for most RF test and telecom systems."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1-221128-0","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/1-221128-0 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}}