{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-71042","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-71042","canonicalUrl":"https://icsourcedirect.com/amphenol/031-71042","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-71042","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC jack, 75 Ohm, female socket, panel mount through-hole right angle, bayonet lock, 1 GHz max, 500 mating cycles, solder termination, nickel body.","salesMarkdown":"## 75-Ohm BNC Jack for Video and Test Signal Paths The 031-71042: It's the 75-ohm member of the 031-71 series, with a 1 GHz frequency ceiling and a bayonet lock that gives a quarter-turn mate, not a threaded one. ## What the 75-Ohm Impedance and 1 GHz Ceiling Mean for the Signal At 75 ohms, the characteristic impedance is matched to the coaxial cable types used in video (RG-59, RG-6) and many test instruments — the connector becomes part of the transmission line, not a lumped discontinuity. The 1 GHz maximum frequency is the usable bandwidth before insertion loss and VSWR degrade; in practice, a 75-ohm BNC with 0.2 dB insertion loss at 1 GHz carries composite video (baseband to ~6 MHz) with negligible attenuation, and the headroom covers higher-rate digital video standards like 3G-SDI (3 GHz) only if the cable and system tolerate a roll-off above 1 GHz — the connector itself is rated to 1 GHz. ## Mounting and Termination — Panel Feed-Through with Solder This jack mounts through a bulkhead panel using the front-side nut and a lockwasher (not included — order separately), with the body's board guide aligning the centre contact to the PCB. ## 500 Mating Cycles — Field-Service Durability The bayonet lock (BNC's signature) gives a fast mate and positive retention without tools, and the 500-cycle rating means the locking ramp and detent won't wear loose before the contact does.","metaTitle":"Amphenol RF 031-71042 BNC Jack, 75 Ohm, 1 GHz, Panel Mount","metaDescription":"Amphenol RF 031-71042 75-ohm BNC jack, female socket, 500 mating cycles, 1 GHz max, panel mount with bayonet lock. Active production, sourced to order.","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 Guide","Includes":"-","Impedance":"75Ohm","Body Finish":"Nickel","Cable Group":"-","Body Material":"Zinc Die Cast","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":"1 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Front Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"031-71","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":"$8.4300","stockQuantity":21,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the Amphenol RF 031-71042 BNC jack?","answer":"Submit a request for quote (RFQ) for current pricing and delivery — availability is confirmed at quote time."},{"question":"What is the impedance of the Amphenol RF 031-71042?","answer":"75 ohms. This is a 75-ohm BNC jack, matched to 75-ohm coaxial cable systems (RG-59, RG-6) and video/test equipment."},{"question":"How many mating cycles does the 031-71042 support?","answer":"500 mating cycles. The gold-plated centre contact and bayonet lock are designed to hold up through regular field re-termination in test and video patch panels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-71042","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/031-71042 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}}