{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"083-1SP","brand":"Amphenol","brandSlug":"amphenol","productSlug":"083-1SP","canonicalUrl":"https://icsourcedirect.com/amphenol/083-1SP","factsUrl":"https://icsourcedirect.com/api/mcp/products/083-1SP","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol 83-Series, UHF connector, PL-259 plug, male pin, 50 Ohm, 300 MHz, 500 V, solder cup, free-hanging, silver body, Bulk.","salesMarkdown":"## PL-259 UHF Plug — 50 Ohm, 300 MHz Ceiling, Fits RG-8 Cable Group The 083-1SP: It is the classic RF interconnect for the HF and low-VHF bands, rated to 300 MHz maximum frequency. The solder cup termination and free-hanging in-line mounting make it a field-installable choice for coaxial cable assemblies using RG-8, RG-8A, RG-9, RG-9A, RG-9B, RG-87, RG-213, RG-214, RG-225, RG-302, or RG-393. ## 50 Ohm Impedance, 300 MHz — The UHF Band Limit The 083-1SP carries a 50 Ohm nominal impedance, matching the standard for most RF test equipment, transceivers, and antenna systems. The 300 MHz maximum frequency defines its application envelope — this is a UHF connector, not a VHF or microwave part. Compare with the Amphenol 082-4425-1003, an N-type plug rated to 11 GHz, or the 031-2367-RFX, a TNC plug also rated to 11 GHz. The PL-259's frequency ceiling is a deliberate trade-off: the threaded coupling and robust centre pin deliver a reliable mechanical mate at a lower cost per connection, but the interface geometry limits its use to below 300 MHz. For a 2.4 GHz Wi-Fi antenna feed or a 6 GHz instrumentation link, this is the wrong connector. ## Cable Fit — RG-8 and Its Family The 083-1SP is listed for cable group RG-8, 8A, 9, 9A, 9B, 87, 213, 214, 225, 302, 393. These are all nominally 50 Ohm coax with a similar dielectric diameter — typically around 0.285 inches for RG-8 and RG-213. No crimp tool is needed, which simplifies field installation but makes consistent shield termination dependent on the installer's technique. The silver-plated brass centre contact and body resist corrosion in outdoor or marine environments, but the silver finish will tarnish over time — it does not affect RF performance.","metaTitle":"Amphenol 083-1SP PL-259 UHF Plug, 50 Ohm, 300 MHz, RG-8","metaDescription":"Amphenol 083-1SP PL-259 UHF plug, male pin, 50 Ohm impedance, 300 MHz max, solder cup termination. Fits RG-8, RG-213, RG-214 cables.","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":"PL-259","Includes":"-","Impedance":"50Ohm","Body Finish":"Silver","Cable Group":"RG-8, 8A, 9, 9A, 9B, 87, 213, 214, 225, 302, 393","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Plug, Male Pin","Fastening Type":"Threaded","Insertion Loss":"-","Product Status":"Active","Voltage Rating":"500 V","Connector Style":"UHF","Frequency - Max":"300 MHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"083-1SP","Contact Termination":"Solder Cup","Dielectric Material":"Liquid Crystal Polymer (LCP)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Silver","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.4400","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/083-1SP/alternatives.json"},"ai":{"faq":[{"question":"Is the 083-1SP compatible with RG-8 cable?","answer":"Yes, the 083-1SP is explicitly listed for cable group RG-8, 8A, 9, 9A, 9B, 87, 213, 214, 225, 302, and 393."},{"question":"What is the impedance of the 083-1SP?","answer":"The 083-1SP has a 50 Ohm nominal impedance."},{"question":"What is the difference between PL-259 and SO-239?","answer":"The PL-259 is the plug (male pin, threaded coupling) — the 083-1SP is a PL-259. The SO-239 is the mating chassis-mount receptacle (female, threaded barrel). They are a matched pair."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/083-1SP","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/083-1SP 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}}