{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"282121-75","brand":"Amphenol","brandSlug":"amphenol","productSlug":"282121-75","canonicalUrl":"https://icsourcedirect.com/amphenol/282121-75","factsUrl":"https://icsourcedirect.com/api/mcp/products/282121-75","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF 1.0/2.3 receptacle, 75 Ohm, 4 GHz, 250 V, panel mount through-hole, gold-plated brass body, beryllium copper centre contact, 500 mating cycles.","salesMarkdown":"## 75-Ohm 1.0/2.3 Receptacle, 4 GHz, Bulkhead-Mount The 282121-75: The 75-ohm impedance is the defining parameter here — it matches 75-ohm cable and system impedance, common in broadcast video, telecom, and test equipment where a 50-ohm path would introduce a mismatch. ## Panel Mount with Hardware Included Mounts through a panel hole with a bulkhead — front side nut — and the package includes the connector and nut (2 pieces total). The through-hole solder termination for the centre contact and shield means the signal and ground paths are soldered to the PCB or cable centre conductor and braid. The push-pull fastening type allows quick mate/demate without tools, but the bulkhead nut secures the connector body to the panel so the push-pull action doesn't stress the solder joints. ## Temperature Range and Dielectric The 250 V rating across the PTFE is conservative for the material; the real voltage limit in a 75-ohm system is usually set by the cable or the air gap at the interface, not the connector itself. ## Mating Half and System Compatibility Mates with a male 1.0/2.3 plug, push-pull fastening. The 1.0/2.3 interface is a defined standard for compact 75-ohm coaxial connectors — look for a male plug with the same 75-ohm impedance and 1.0/2.3 style.","metaTitle":"Amphenol RF 282121-75, 1.0/2.3 Receptacle, 75 Ohm, 4 GHz","metaDescription":"Amphenol RF 282121-75 1.0/2.3 receptacle, 75 Ohm impedance, 4 GHz max, 500 mating cycles, gold-plated brass body, bulkhead mount. Sourced to order.","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":"-","Includes":"2 pcs - 1 Connector, 1 Nut","Impedance":"75Ohm","Body Finish":"Gold","Cable Group":"-","Body Material":"Brass","Housing Color":"Gold","Mating Cycles":"500","Mounting Type":"Panel Mount, Through Hole","Connector Type":"Receptacle, Female Socket","Fastening Type":"Push-Pull","Insertion Loss":"-","Product Status":"Active","Voltage Rating":"250 V","Connector Style":"1.0/2.3","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Front Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"282121","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":"$11.5000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/db339857d50e69de12702eb2a62d826c.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/282121-75/alternatives.json"},"ai":{"faq":[{"question":"What is the mating connector for 282121-75?","answer":"The mating connector is a male 1.0/2.3 plug with push-pull fastening, also 75-ohm impedance. Amphenol RF offers male plugs in the same 1.0/2.3 series — look for an order code like 282133-75 (which is a receptacle, not a plug) or search for a male 1.0/2.3 plug with 75-ohm rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/282121-75","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/282121-75 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}}