{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"112659-75-12","brand":"Amphenol","brandSlug":"amphenol","productSlug":"112659-75-12","canonicalUrl":"https://icsourcedirect.com/amphenol/112659-75-12","factsUrl":"https://icsourcedirect.com/api/mcp/products/112659-75-12","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC jack, 112659-75-12, 75 Ohm, 4 GHz, 500 V, panel mount bulkhead with bayonet lock, includes lockwasher and nut.","salesMarkdown":"## 75 Ohm BNC — not a 50 Ohm drop-in The 112659-75-12: At 75 Ohm it is the standard for video, broadcast, and telecom signal paths — not the 50 Ohm used in RF test equipment or cellular. Dielectric is PTFE, body is nickel-plated brass. ## What bolts in — hardware and fit The kit includes the connector, lockwasher, and nut — three pieces total. The bayonet lock mates fast; no threading, just a quarter-turn. Shield and center contact both terminate by solder. ## 75 Ohm vs 50 Ohm — the mismatch penalty The 112659-75-12 is 75 Ohm. A 75 Ohm jack on a 50 Ohm line gives a VSWR of about 1.5 at DC — that is a 4% reflection, which may be acceptable for video but not for precision RF. If the BOM calls for 50 Ohm, the 112553 is the correct pick. If the system is 75 Ohm video or data, this is the part.","metaTitle":"Amphenol RF 112659-75-12 BNC Jack, 75 Ohm, 4 GHz, Bulkhead","metaDescription":"Amphenol RF 112659-75-12 BNC jack, 75 Ohm impedance, 4 GHz max frequency, 500 mating cycles. Panel mount with bayonet lock. Includes nut and lockwasher.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors","RF Cable Assemblies"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"-","Includes":"3 pcs - 1 Connector, 1 Lockwasher, 1 Nut","Impedance":"75Ohm","Body Finish":"Nickel","Cable Group":"-","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Panel Mount, Through Hole, Right Angle","Connector Type":"Jack, Female Socket","Fastening Type":"Bayonet Lock","Insertion Loss":"0.2dB","Product Status":"Active","Voltage Rating":"500 V","Connector Style":"BNC","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Front Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"112659","Contact Termination":"Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Beryllium Copper"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.8900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/174ebf59ef1d19afe2039afc505f9dfd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does 112659-75-12 include the lockwasher and nut?","answer":"Yes. The package includes three pieces: the connector, one lockwasher, and one nut — all needed for the bulkhead front-side nut mount."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/112659-75-12","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/112659-75-12 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}}