{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-70505","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-70505","canonicalUrl":"https://icsourcedirect.com/amphenol/031-70505","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-70505","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC jack, 75 Ohm, dual-port, panel-mount bulkhead, right-angle PCB solder tail, bayonet lock, gold-plated phosphor bronze centre contact, 500 mating cycles, board lock, isolated housing, 1 GHz, 0.2 dB insertion loss, -55 to 85°C.","salesMarkdown":"## 75 Ohm BNC Jack — Dual-Port, Panel-Mount, Right-Angle The 031-70505: That 75 Ohm impedance is the headline difference from the common 50 Ohm BNC — it is the standard impedance for composite video, broadcast, and precision measurement signal paths where the line impedance is 75 Ohm. The connector is a bulkhead-mount with a front-side nut, so it fixes to the panel and the right-angle PCB tail routes the signal to the board. The housing is black and silver, and the dielectric is polypropylene. ## What the 75 Ohm Impedance Means for Your Signal Path The 75 Ohm impedance sets the characteristic impedance for the whole channel. This jack is the correct choice for 75 Ohm coax cables and equipment designed around 75 Ohm video or data standards. The 1 GHz bandwidth with 0.2 dB insertion loss handles baseband video and SDI without measurable loss. ## Dual Ports in One Body — Saves Panel Space Two BNC jacks in a single shell means one panel cutout instead of two. The ports are isolated from each other — the housing is marked as isolated, so the shell is not tied to ground, which matters for floating-shield or video applications where ground loops are a concern. The closest functional peer is the 031-5538-10RFX — a single-port BNC jack at 50 Ohm, same 1 GHz bandwidth, same 500-cycle rating, same board lock and isolated housing, same 500 V rating. The decision between them is driven by impedance: 75 Ohm for video/broadcast, 50 Ohm for RF/test. The 031-70505 gives you two ports in one body; the 031-5538-10RFX is a single port in a bulk package. The 31-5640-1010 and 31-5431 are also single-port 50 Ohm parts with similar construction — none is a direct swap for the 75 Ohm dual-port 031-70505.","metaTitle":"031-70505 Amphenol RF BNC Jack, 75 Ohm, Dual Port, 1 GHz","metaDescription":"031-70505 Amphenol RF BNC jack, 75 Ohm impedance, dual-port, panel-mount with bayonet lock.","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":"Tray","Features":"Board Lock, Isolated","Includes":"-","Impedance":"75Ohm","Body Finish":"-","Cable Group":"-","Body Material":"-","Housing Color":"Black, 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":"1 GHz","Number of Ports":"2","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Front Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"031-70","Contact Termination":"Solder","Dielectric Material":"Polypropylene (PP)","Operating Temperature":"-55°C~85°C","Center Contact Plating":"Gold","Center Contact Material":"Phosphor Bronze"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.1500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c7dd28a74cb199389cb3b74dbd1a4629.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/031-70505/alternatives.json"},"ai":{"faq":[{"question":"Does 031-70505 have a board lock?","answer":"Yes, it includes a board lock and an isolated housing. The board lock holds the right-angle tails during wave solder, and the isolated housing means the shell is not tied to ground."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-70505","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/031-70505 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}}