{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"034-1025-12G","brand":"Amphenol","brandSlug":"amphenol","productSlug":"034-1025-12G","canonicalUrl":"https://icsourcedirect.com/amphenol/034-1025-12G","factsUrl":"https://icsourcedirect.com/api/mcp/products/034-1025-12G","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC HD plug, 75 Ohm, 18 GHz, 1 port, bayonet lock, crimp termination, gold centre contact, nickel body, bulk pack includes connector + contact + ferrule.","salesMarkdown":"## 75 Ohm BNC HD Plug Rated to 18 GHz The 034-1025-12G: This is not a standard 50 Ohm BNC — the 75 Ohm characteristic impedance is built into the dielectric geometry and centre contact dimensions, so it mates correctly only with 75 Ohm BNC jacks and receptacles. The connector is rated to 18 GHz, an unusually high frequency ceiling for a 75 Ohm BNC, making it suitable for HD-SDI, broadcast video routers, and test equipment that pushes beyond the typical 3-4 GHz limit of standard 75 Ohm BNCs. The kit includes three pieces: the plug body with a gold-plated phosphor bronze centre pin, a crimp ferrule for the cable braid shield, and the centre contact. ## Cable Group and Crimp Termination This plug is listed for AT&T 734, AT&T 734A, and Belden 1505A cable. The cable group determines the correct crimp tool and die set: the centre contact must crimp onto the centre conductor, and the ferrule must compress the braid against the cable jacket. Using a cable outside this group risks impedance mismatch or poor shield termination, which will degrade the VSWR above 1 GHz. The shield is terminated by crimping the included ferrule over the braid. The centre contact is also crimped. Both operations require the specified tooling; Amphenol RF recommends their crimp tool set for this series. ## 50 Ohm vs 75 Ohm: Not Interchangeable The 034-1025-12G is a 75 Ohm plug. The visually similar 034-1025-11G is a 50 Ohm version. The centre pin diameter and dielectric dimensions differ between the two impedance variants — they are not mechanically interchangeable. A 75 Ohm plug mated to a 50 Ohm jack will have an impedance discontinuity that increases VSWR and reduces signal integrity above a few hundred MHz. The 75 Ohm version is correct for video and broadcast systems; the 50 Ohm version is for RF test and telecom.","metaTitle":"Amphenol RF 034-1025-12G BNC HD Plug, 75 Ohm, 18 GHz, Crimp","metaDescription":"75 Ohm BNC HD plug, 18 GHz max, gold-plated centre contact, 500 mating cycles. Fits AT&T 734/734A, Belden 1505A. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"-","Includes":"3 pcs - 1 Connector, 1 Contact, 1 Ferrule","Impedance":"75Ohm","Body Finish":"Nickel","Cable Group":"AT&T 734, 734A, Belden 1505A","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":"-","Product Status":"Active","Connector Style":"BNC, HD","Frequency - Max":"18 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"034-10","Contact Termination":"Crimp","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Phosphor Bronze"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.4700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/e46153222c15d89589db11e001f79e1d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 034-1025-12G available via RFQ confirmation?","answer":"The 034-1025-12G is an active-production part sourced through independent distribution."},{"question":"What cable fits 034-1025-12G?","answer":"This plug is listed for AT&T 734, AT&T 734A, and Belden 1505A cable. Using a cable outside this group may affect impedance match and shield termination."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/034-1025-12G","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/amphenol/034-1025-12G when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T20:41:44.623Z","lastPublished":"2026-07-23T20:41:44.623Z","indexable":true}}