{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"2-221128-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"2-221128-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2-221128-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/2-221128-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity BNC plug, male pin, 50 Ohms, 4 GHz, crimp termination for RG-179/187, nickel-plated zinc body, gold center contact, 500 mating cycles, bulk.","salesMarkdown":"## BNC Plug, 50 Ohm, 4 GHz — for RG-179/187 Coax It terminates RG-179 and RG-187 coaxial cables with a crimp center contact and crimp shield termination — no soldering needed for the center pin, just the right crimp die. No direct replacement is listed on the record. If you need a current-production alternative, a parametric search for a 50 Ohm BNC plug for RG-179/187 with similar frequency range will turn up active options from TE or other manufacturers. The crimp center contact and shield termination require a crimp tool with the correct die set for the cable diameter. ## RF Performance and Mating With a 4 GHz maximum frequency and 0.2 dB insertion loss, this plug is suitable for RF applications up to the low microwave range — think test equipment, telecom infrastructure, and video distribution. The 500 V rating gives headroom for signals with significant peak voltage. The bayonet lock mates with standard BNC jacks (female) on bulkheads, PCB mounts, or cable receptacles. Gold plating on the center contact ensures low and stable contact resistance over the 500-cycle life.","metaTitle":"TE Connectivity 2-221128-3 BNC Plug, 50 Ohm, 4 GHz","metaDescription":"Obsolete TE BNC plug, male pin, 50 Ohm, 4 GHz, crimp termination for RG-179/187. Sourced to order against RFQ. Gold center contact, 500 mating cycles.","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-179, 187","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":"$3.0828","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/efb02254a8883d794e84d44e2544bbf7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What cable is compatible with 2-221128-3?","answer":"The 2-221128-3 is designed for RG-179 and RG-187 coaxial cables. These are small-diameter cables, typically used in RF and video applications. The connector uses a crimp termination for both the center contact and the shield."},{"question":"What is the impedance and frequency range of 2-221128-3?","answer":"The 2-221128-3 is a 50 Ohm BNC plug rated to 4 GHz maximum frequency. Insertion loss is 0.2 dB. It is suitable for RF signal paths in test, telecom, and video systems."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2-221128-3","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/2-221128-3 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}}