{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"531-40120","brand":"Amphenol","brandSlug":"amphenol","productSlug":"531-40120","canonicalUrl":"https://icsourcedirect.com/amphenol/531-40120","factsUrl":"https://icsourcedirect.com/api/mcp/products/531-40120","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF 531-40120, F-type jack-to-jack adapter, straight, 75 Ohm, 1.2 GHz, bulkhead panel mount, 200 mating cycles, tin-plated brass body.","salesMarkdown":"## 75 Ohm F-Type Pass-Through for Bulkhead Installations The Amphenol RF 531-40120 is a straight F-type jack-to-jack adapter, designed for in-line signal pass-through through a panel bulkhead. This adapter mounts through a panel cutout using the bulkhead feature, secured with a lockwasher and nut (not included). The straight body keeps the cable run coaxial with the panel — no right-angle bend to stress the connector or the cable jacket. ## How It Compares to Similar F-Type Adapters The key difference is frequency range: the 222121 is rated to 2 GHz, while the 531-40120 tops out at 1.2 GHz. For satellite IF work at 950–2150 MHz, the 531-40120 covers the band but leaves no margin above 2.15 GHz; the 222121 gives headroom if the system ever runs DOCSIS 3.1 upstream signals above 1.2 GHz. Both use tin-plated brass bodies and tin centre contacts, so corrosion resistance and mating cycle life are comparable. The 531-40120 uses a PTFE dielectric; the 222121 uses polypropylene — PTFE holds its dielectric constant more tightly over temperature, which matters for phase stability in longer cable runs. Against the right-angle 222F-90, the 531-40120's straight body is the correct choice for a bulkhead pass-through where the cable exits the panel on the same axis. The 222F-90 introduces a 90° bend, useful when the panel depth is tight but adds a stress point on the cable if the run is rigid. The 531-40120 is listed as Active on the manufacturer's lifecycle record — no last-time-buy or end-of-life notice is in effect.","metaTitle":"531-40120 F-Type Adapter, 75 Ohm, 1.2 GHz, Bulkhead","metaDescription":"531-40120 Amphenol RF F-type jack-to-jack adapter, 75 Ohm impedance, 1.2 GHz max frequency, straight bulkhead mount, 200 mating cycles.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Style":"Straight","Series":"-","Package":"Bulk","Features":"-","Includes":"-","Impedance":"75Ohm","Body Finish":"Tin","Adapter Type":"Jack to Jack","Body Material":"Brass","Center Gender":"Female to Female","Mating Cycles":"200","Mounting Type":"Panel Mount","Adapter Series":"F to F","Fastening Type":"Threaded, Threaded","Insertion Loss":"-","Product Status":"Active","Conversion Type":"Same Series","Frequency - Max":"1.2 GHz","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead","Ingress Protection":"-","Base Product Number":"531","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-40°C~85°C","Center Contact Plating":"Tin","Center Contact Material":"Beryllium Copper","Convert To (Adapter End)":"F Jack, Female Socket","Convert From (Adapter End)":"F Jack, Female Socket"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.1000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/15630ddf428013d8d3c43c2f42470984.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/531-40120/alternatives.json"},"ai":{"faq":[{"question":"Is the 531-40120 compatible with RG6 coax?","answer":"Yes, the 531-40120 uses standard F-type female ports on both ends, which mate with the F-type male connectors found on RG6 and RG59 cables. The adapter itself does not crimp or clamp to the cable — it is a bulkhead pass-through; the cable terminates into a separate F-type male connector that threads onto the adapter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/531-40120","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/531-40120 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}}