{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0731485003","brand":"Molex","brandSlug":"molex","productSlug":"0731485003","canonicalUrl":"https://icsourcedirect.com/molex/0731485003","factsUrl":"https://icsourcedirect.com/api/mcp/products/0731485003","rawCanonicalId":null},"summary":{"shortDescription":"Molex 73148 series BNC T adapter, 0731485003, 50 Ohm, plug to dual jack, free-hanging, nickel-plated zinc alloy body, gold center contacts, bulk.","salesMarkdown":"The Molex 0731485003 is a BNC T-shaped adapter from the 73148 series, configured as a single BNC plug (male pin) splitting into two BNC jacks (female sockets). The 50 Ohm impedance matches standard RG-58, RG-174, and LMR-200 coax cable systems — the impedance is the first thing to check before wiring it into a signal chain, because a 75 Ohm adapter on a 50 Ohm line will reflect signal power at the junction. The body is zinc alloy with a nickel finish — nickel stands up to repeated bayonet coupling without galling the threads, and the zinc casting keeps the weight down for a free-hanging inline adapter. Center contacts are brass and phosphor bronze, both gold-plated. Gold on the mating surfaces keeps contact resistance stable across hundreds of mate-unmate cycles; the phosphor bronze spring fingers in the jacks maintain grip as the connector ages. The dielectric spacer between center and outer conductor is polypropylene (PP), a low-loss RF material that holds the 50 Ohm characteristic impedance across the junction. Free-hanging (in-line) mounting — there are no panel flanges or threaded holes. The adapter hangs on the cable assembly, supported by the bayonet locks on both ends. Each end uses a standard BNC bayonet lock: a quarter-turn couples the plug to a jack, and the two jacks accept standard BNC plugs. The center gender is female to male — the plug end has a male pin, each jack end has a female socket. That means it mates directly with a standard BNC jack on one side and two standard BNC plugs on the other, no gender-changing adapters needed.","metaTitle":"Molex 73148 0731485003 BNC T Adapter, 50 Ohm","metaDescription":"Molex 0731485003 BNC T adapter, 50 Ohm impedance, plug-to-dual-jack configuration. Free-hanging, nickel-plated zinc body, gold center contacts.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Molex","Style":"T-Shape","Series":"73148","Package":"Bulk","Features":"-","Includes":"-","Impedance":"50 Ohms","Body Finish":"Nickel","Adapter Type":"Plug to Jack","Body Material":"Zinc Alloy","Center Gender":"Female to Male","Mating Cycles":"-","Mounting Type":"Free Hanging (In-Line)","Adapter Series":"BNC to BNC, Dual","Fastening Type":"Bayonet Lock, Bayonet Lock","Insertion Loss":"-","Product Status":"Active","Conversion Type":"Same Series","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Base Product Number":"073148","Dielectric Material":"Polypropylene (PP)","Operating Temperature":"-","Center Contact Plating":"Gold","Center Contact Material":"Brass; Phosphor Bronze","Convert To (Adapter End)":"BNC Jack, Female Socket (2)","Convert From (Adapter End)":"BNC Plug, Male Pin"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.3900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/a4a9fa8afde11ef3b6715cbc1eba8f98.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the Molex 0731485003 a 50 ohm or 75 ohm BNC adapter?","answer":"The 0731485003 is a 50 Ohm BNC adapter, matching the impedance of standard RG-58, RG-174, and LMR-200 coaxial cable systems."},{"question":"What is the center gender of the Molex 0731485003?","answer":"The center gender is female to male — the plug end has a male pin, and each of the two jack ends has a female socket."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/0731485003","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/molex/0731485003 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}