{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-70578-12G","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-70578-12G","canonicalUrl":"https://icsourcedirect.com/amphenol/031-70578-12G","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-70578-12G","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC jack, 75 Ohm, isolated ground, right-angle PCB mount, bulkhead, gold center contact, 12 GHz, 500 cycles.","salesMarkdown":"## What this 75 Ohm isolated BNC jack is for The 031-70578-12G: It's a single-port, female socket (jack) in the BNC style, with a bayonet lock for quick quarter-turn mating. The 75 Ohm impedance tells you this is spec'd for the video/CCTV/telecom side of the RF world, not the 50 Ohm radio chain. The isolated feature means the outer conductor is DC-isolated from the panel ground — useful when you need to break a ground loop without adding an in-line isolator. ## Mounting and termination — panel bulkhead with right-angle PCB tails ## What the 12 GHz and 500-cycle ratings mean for your application The 12 GHz frequency ceiling is high for a 75 Ohm BNC — most 75 Ohm BNCs top out around 1-4 GHz. That headroom means this jack will pass 3G-SDI, 12G-SDI, or broadband RF distribution without rolling off the signal edges. The 500 mating cycles, combined with the gold-plated brass center contact, tell you this connector is built for field-service or test-bench reconnect duty, not a one-and-done install.","metaTitle":"Amphenol RF 031-70578-12G BNC Jack, 75 Ohm, Isolated, 12 GHz","metaDescription":"Amphenol RF 031-70578-12G BNC jack, 75 Ohm, isolated ground, 12 GHz max, 500 mating cycles. Panel mount right-angle with gold-plated center contact.","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":"BNC","Package":"Bag","Features":"Isolated","Includes":"-","Impedance":"75 Ohms","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":"-","Product Status":"Active","Connector Style":"BNC","Frequency - Max":"12 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Front Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"031-70","Contact Termination":"Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C ~ 165°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.9600","stockQuantity":23,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/8e88a21ce22dde63c69fb692691950a0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does 031-70578-12G have an isolated ground?","answer":"Yes, the Features field lists 'Isolated' — the outer conductor is DC-isolated from the panel ground, which breaks ground loops in video or instrumentation signal paths."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-70578-12G","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/031-70578-12G 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}}