{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-6874","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-6874","canonicalUrl":"https://icsourcedirect.com/amphenol/031-6874","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-6874","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF ARC series TNC jack, female socket, 50 Ohm, panel mount bulkhead, for LMR-400 cable, crimp/solder termination, gold-plated center contact, 8 GHz max, 500 mating cycles.","salesMarkdown":"## TNC Jack for LMR-400 — 8 GHz, 50 Ohm, Panel Mount The Amphenol RF 031-6874 is a TNC jack, female socket, from the ARC series — a threaded RF interface that mates with a standard TNC plug. This is a single-port, bulkhead-mount design secured by a front-side nut, intended for fixed installations where the connector stays panel-mounted and the cable is terminated in the field. ## What the 8 GHz and 500-Cycle Ratings Mean for Field Use The 8 GHz maximum frequency covers the L-band through C-band, so this jack handles GPS, Wi-Fi, cellular backhaul, and ISM-band applications without hitting the interface's roll-off. The 500 mating cycles are a direct result of the gold-plated center contact — tin or silver would fret sooner under the threaded coupling nut's torque. For a panel-mount bulkhead connector that gets mated a few times during installation and then left alone, 500 cycles is generous headroom. ## Termination and Mounting Sequence The shield is crimped to the LMR-400 braid, and the center conductor is soldered into the contact. The bulkhead mount uses a front-side nut that tightens against the panel from the outside — the connector body does not rotate during cable termination, which keeps the center contact aligned. The threaded fastening type means the mating plug screws on, not push-and-twist like a BNC, so vibration or cable tug will not unseat the pair.","metaTitle":"Amphenol RF 031-6874 TNC Jack, ARC Series, 8 GHz, LMR-400","metaDescription":"Amphenol RF 031-6874 TNC jack, female socket, 50 Ohm, 8 GHz max, for LMR-400 cable. Panel mount bulkhead, gold-plated beryllium copper center contact.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Series":"ARC","Package":"Bag","Features":"-","Includes":"-","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"LMR-400","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Panel Mount","Connector Type":"Jack, Female Socket","Fastening Type":"Threaded","Insertion Loss":"-","Product Status":"Active","Connector Style":"TNC","Frequency - Max":"8 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Front Side Nut","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"031-68","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":"$13.0900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/8ccdd384b5dbe9c9e196fdba3ca136dc.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/031-6874/alternatives.json"},"ai":{"faq":[{"question":"Is the 031-6874 compatible with LMR-400 cable?","answer":"Yes, the 031-6874 is specified for the LMR-400 cable group. The shield termination is crimp and the center contact is solder, both sized for that cable's dimensions."},{"question":"What is the Amphenol RF 031-6874 connector used for?","answer":"It is a TNC jack, female socket, used as a panel-mount bulkhead RF interconnect for LMR-400 cable in applications up to 8 GHz — typical in antenna feeds, base station equipment, and outdoor wireless infrastructure."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-6874","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/031-6874 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}}