{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"31-10-RFX","brand":"Amphenol","brandSlug":"amphenol","productSlug":"31-10-RFX","canonicalUrl":"https://icsourcedirect.com/amphenol/31-10-RFX","factsUrl":"https://icsourcedirect.com/api/mcp/products/31-10-RFX","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF 31-10-RFX, BNC jack female socket, 50 Ohm, 4 GHz, panel mount bulkhead, silver-plated phosphor bronze center contact, solder cup termination, includes lockwasher and nut.","salesMarkdown":"The 31-10-RFX: It includes the connector, a lockwasher, and a nut — three pieces that cover the mounting hardware in one order code. ## RF Performance and Signal Path Limits The 4 GHz ceiling means it covers the full VHF/UHF band and well into the lower microwave range; above that frequency the BNC interface geometry starts to radiate and the insertion loss climbs past the rated 0.2 dB. The silver-plated phosphor bronze center contact keeps the RF path low-loss and oxidation-resistant for the signal levels this connector sees. ## Mounting and Termination — What Ships in the Bag The 31-10-RFX is a rear-side-nut bulkhead mount: the jack body passes through the panel hole, the lockwasher and nut tighten from the rear. The shield termination is solder — you tin the braid and flow it into the cup — and the center contact uses a solder cup as well, so this is a hand-assembly job, not a crimp operation. Rated for 500 mating cycles — that is a solid number for a bayonet-lock connector on a test panel or a piece of portable field gear that gets connected and disconnected a few times a week. The silver plating on the center contact helps here: silver has good cycle life under moderate insertion force, and the bayonet lock distributes the mating load evenly across the coupling nut rather than the center pin. After 500 cycles the contact resistance may start to drift; for higher-cycle applications a gold-plated BNC would be the better call. ## Voltage and Environment — What the 500 V Rating Means In practice, at 4 GHz the RF voltage swing is usually well below 500 V peak, so the voltage rating is a safety margin for DC bias or low-frequency AC that might ride on the RF line.","metaTitle":"31-10-RFX BNC Jack, 50 Ohm, 4 GHz, Panel Mount","metaDescription":"31-10-RFX BNC jack, 50 Ohm, 4 GHz max, 500 V, 500 mating cycles, silver-plated contacts, panel mount with lockwasher and nut included.","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":"Isolated","Includes":"3 pcs - 1 Connector, 1 Lockwasher, 1 Nut","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"-","Body Material":"Brass","Housing Color":"Silver, White","Mating Cycles":"500","Mounting Type":"Panel Mount","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":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Rear Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"31-10","Contact Termination":"Solder Cup","Dielectric Material":"Polyamide (PA), Nylon","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Silver","Center Contact Material":"Phosphor Bronze"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.2500","stockQuantity":23,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Does 31-10-RFX include a lockwasher and nut?","answer":"Yes, the kit includes 3 pieces: the connector body, one lockwasher, and one nut — all in the bag for a single-order-code panel-mount install."},{"question":"Is 31-10-RFX compatible with RG58 cable?","answer":"The 31-10-RFX has a solder-cup center contact and a solder shield termination — it accepts the center conductor and braid of RG58 directly, but it is not a crimp-style BNC. You solder the center pin and the shield braid into the respective cups. The 50 Ohm impedance matches RG58."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/31-10-RFX","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/31-10-RFX 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}}