{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"034-1030-12G","brand":"Amphenol","brandSlug":"amphenol","productSlug":"034-1030-12G","canonicalUrl":"https://icsourcedirect.com/amphenol/034-1030-12G","factsUrl":"https://icsourcedirect.com/api/mcp/products/034-1030-12G","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol HD-BNC jack, female socket, 75 Ohm, 18 GHz, panel mount bulkhead, right-angle through-hole solder tails, gold-plated beryllium copper centre contact, PTFE dielectric, 500 mating cycles.","salesMarkdown":"## HD-BNC Jack for 75 Ohm Signal Paths The Amphenol 034-1030-12G is an HD-BNC jack with a female socket centre contact, built for 75 Ohm impedance systems. It mates with a standard BNC male plug via the bayonet lock — the same quarter-turn engagement you'd find on any BNC, but the HD-BNC interface is optimised for higher frequencies. Rated to 18 GHz, this jack carries broadcast video, telecom, and instrumentation signals where the 75 Ohm line impedance matches the cable and equipment. The PTFE dielectric maintains a consistent 75 Ohm impedance through the connector body, critical at 18 GHz where a few picofarads of capacitance would create a reflection. ## Mounting and Termination — Panel + PCB The signal and shield connections terminate via solder tails that go through-hole on the PCB, right-angle orientation. The kit includes the connector and the mounting nut — no separate lockwasher or gasket in the bag, so if the panel needs a seal against moisture, you'll add that yourself. ## Comparing the HD-BNC Siblings The 034-1140-12G is the closest functional peer — same HD-BNC interface, same 75 Ohm impedance, same 18 GHz rating, same brass body with gold/nickel finish. The difference is the 034-1140-12G includes an isolated centre contact feature, which means the signal path is DC-blocked from the shield. If your circuit already has a DC block elsewhere, the 034-1030-12G saves the cost of the isolation; if you need the block built into the connector, the 034-1140-12G is the one. The 034-1118-12G is a male plug, not a jack — it terminates to a cable group (Belden 1855 A, 4855R) with a crimp shield and solder centre pin. That plug mates with this jack, so if you're building a cable assembly to plug into this bulkhead, the 034-1118-12G is the mating half.","metaTitle":"Amphenol 034-1030-12G HD-BNC Jack, 75 Ohm, 18 GHz","metaDescription":"Amphenol 034-1030-12G HD-BNC jack, female socket, 75 Ohm impedance, 18 GHz max frequency, panel mount with right-angle solder tails.","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":"2 pcs - 1 Connector, 1 Nut","Impedance":"75Ohm","Body Finish":"Gold, Nickel","Cable Group":"-","Body Material":"Brass","Housing Color":"Gold, 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, HD","Frequency - Max":"18 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Front Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"034-10","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":"$11.1500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c1a535de25e0faad1a3ba4de018989bc.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/034-1030-12G/alternatives.json"},"ai":{"faq":[{"question":"What is the impedance of 034-1030-12G?","answer":"75 Ohm — this is an HD-BNC jack designed for 75 Ohm systems like broadcast video, not the 50 Ohm impedance common on test equipment BNCs."},{"question":"Is 034-1030-12G a male or female connector?","answer":"Female — it's a jack with a female socket centre contact that accepts a male BNC plug."},{"question":"What mounting does 034-1030-12G require?","answer":"Panel mount through a bulkhead, secured with the included front-side nut, plus right-angle through-hole solder tails to the PCB. The shield and centre pin are both soldered."},{"question":"What is the closest functional second-source to 034-1030-12G?","answer":"The 034-1140-12G is the same HD-BNC jack, 75 Ohm, 18 GHz, with an isolated centre contact. If you don't need the DC isolation, the 034-1030-12G is the direct fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/034-1030-12G","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/034-1030-12G 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}}