{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"31-5687","brand":"Amphenol","brandSlug":"amphenol","productSlug":"31-5687","canonicalUrl":"https://icsourcedirect.com/amphenol/31-5687","factsUrl":"https://icsourcedirect.com/api/mcp/products/31-5687","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF RP-TNC jack, male pin, 50 Ohm, 4 GHz, 500 V, panel mount bulkhead, crimp/solder termination, nickel body, gold center contact, includes lockwasher and nut.","salesMarkdown":"## 50 Ohm RP-TNC Bulkhead Jack for RG-58 and LMR-195 Coax The 31-5687: It is a panel-mount bulkhead connector that comes as a kit — the bag includes the jack body, a lockwasher, and a front-side mounting nut, so you have everything to secure it to a panel in one order. The RP-TNC interface is physically identical to a standard TNC but swaps the gender of the center contact: this jack has a male pin, meaning it mates with an RP-TNC plug that has a female socket. This jack terminates to a specific set of coax cables: RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907. The shield is crimped, and the center contact can be crimped or soldered — the choice depends on your field tooling and reliability requirements. For a bulkhead install, the connector mounts from the front of the panel with the nut threaded onto the body from the rear; the lockwasher prevents the nut from backing off under vibration. The threaded fastening type gives a secure mate that holds up to 500 mating cycles. ## RF Performance: 4 GHz, 0.18 dB Insertion Loss Insertion loss is specified at 0.18 dB — a tight number that means the connector adds negligible attenuation to the link budget. The voltage rating is 500 V, which is more than enough headroom for the typical RF power levels these cables carry.","metaTitle":"Amphenol RF 31-5687 RP-TNC Jack, 50 Ohm, 4 GHz, Bulkhead","metaDescription":"Amphenol RF 31-5687 RP-TNC jack, male pin, 50 Ohm, 4 GHz max, 0.18 dB insertion loss. Panel mount bulkhead kit includes lockwasher and nut.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"-","Includes":"3 pcs - 1 Connector, 1 Lockwasher, 1 Nut","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Panel Mount","Connector Type":"Jack, Male Pin","Fastening Type":"Threaded","Insertion Loss":"0.18dB","Product Status":"Active","Voltage Rating":"500 V","Connector Style":"RP-TNC","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Front Side Nut","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"31-568","Contact Termination":"Crimp or Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.1175","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/31-5687/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the Amphenol RF 31-5687?","answer":"The 31-5687 is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — lead time and stock position are confirmed at quote time."},{"question":"What cables are compatible with the 31-5687?","answer":"The 31-5687 terminates to RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907 coax cables."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/31-5687","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/31-5687 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}}