{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-5539","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-5539","canonicalUrl":"https://icsourcedirect.com/amphenol/031-5539","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-5539","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC jack, female socket, 50 Ohm, 1 GHz, 500 V, panel mount bulkhead, through-hole solder termination, gold-plated center contact, 500 mating cycles, Bulk.","salesMarkdown":"## 50 Ohm BNC Bulkhead Jack — 1 GHz, 500 Mating Cycles The 031-5539: The bayonet lock gives you the standard push-turn BNC mate — no tools, just a quarter-turn to lock. The 0.2 dB insertion loss across the band means the signal budget stays tight from DC through 1 GHz, so this jack works for test equipment ports, RF panel feeds, and instrumentation where you need a repeatable 50 Ohm reference point. ## 031-5539 vs 031-5538-10RFX — Board Guide vs Board Lock The closest functional peer to the 031-5539 is the 031-5538-10RFX. Both are 50 Ohm BNC jacks, 1 GHz, 500 V, 500 mating cycles, with the same zinc die-cast body and nickel finish. The difference is in the mounting hardware: the 031-5539 carries a board guide feature for PCB alignment, while the 031-5538-10RFX substitutes a board lock and ships as a 3-piece kit (connector, lockwasher, nut). If your assembly uses a lockwasher under the bulkhead nut, the 031-5538-10RFX saves you a sourcing step. If you need the alignment guide for automated board placement, stay with the 031-5539.","metaTitle":"031-5539 Amphenol RF BNC Jack, 50 Ohm, 1 GHz, Bulkhead","metaDescription":"Amphenol RF 031-5539 BNC jack, female socket, 50 Ohm impedance, 1 GHz max frequency, 0.2 dB insertion loss, 500 mating cycles, panel mount with solder","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":"Board Guide, Isolated","Includes":"-","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"-","Body Material":"Zinc Die Cast","Housing Color":"Black, Silver","Mating Cycles":"500","Mounting Type":"Panel Mount, Through Hole","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":"031-55","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":"$7.9300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/dedefe1c7ed8571b835f9186a701dfe0.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/031-5539/alternatives.json"},"ai":{"faq":[{"question":"Is the 031-5539 compatible with standard BNC cables?","answer":"The 50 Ohm impedance matches the common 50 Ohm BNC cable and connector ecosystem."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-5539","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/031-5539 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}}