{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"142134-75","brand":"Amphenol","brandSlug":"amphenol","productSlug":"142134-75","canonicalUrl":"https://icsourcedirect.com/amphenol/142134-75","factsUrl":"https://icsourcedirect.com/api/mcp/products/142134-75","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol SMB Mini, 142134-75, Plug Female Socket, 1 Port, 75 Ohm, Through Hole, Solder, Snap-On, Gold Body, Bulk.","salesMarkdown":"## 75 Ohm SMB Mini Plug — Through-Hole, Snap-On It uses a snap-on fastening mechanism for quick, tool-less mating with the corresponding SMB jack. The gold-plated brass body and beryllium copper center contact, plated in gold, deliver consistent RF performance across the connector's rated band. Insertion loss is specified at 0.3 dB per mated pair, a clean figure for a snap-on subminiature connector. The dielectric is PTFE, which maintains stable impedance across the temperature range and provides low signal loss at RF frequencies. ## 75 Ohm vs 50 Ohm — Selecting the Right Impedance The 142134-75 is a 75 Ohm SMB plug, distinct from the more common 50 Ohm SMB variants such as the Amphenol 142138 (a 50 Ohm SMB jack, male pin). The impedance difference is non-negotiable — a 75 Ohm plug mated into a 50 Ohm system creates a mismatch that degrades return loss and increases VSWR. Choose the 142134-75 for 75 Ohm coaxial cable systems (common in video, broadcast, and some telecom distribution) and the 50 Ohm version for RF test equipment, antennas, and general-purpose radio frequency paths. The 142134-75 is a plug with a female socket, while the 142138 is a jack with a male pin — they are mating halves, not alternatives. For a 75 Ohm system, the 142134-75 mates with a 75 Ohm SMB jack (male pin, such as the Amphenol 142135 series).","metaTitle":"Amphenol 142134-75 SMB Mini Plug, 75 Ohm, Through Hole","metaDescription":"Amphenol 142134-75 SMB mini plug, female socket, 75 Ohm impedance, through-hole solder termination. 500 mating cycles, 0.3 dB insertion loss.","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":"-","Impedance":"75Ohm","Body Finish":"Gold","Cable Group":"-","Body Material":"Brass","Housing Color":"Gold","Mating Cycles":"500","Mounting Type":"Through Hole","Connector Type":"Plug, Female Socket","Fastening Type":"Snap-On","Insertion Loss":"0.3dB","Product Status":"Active","Connector Style":"SMB, Mini","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"142134","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":"$8.4600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/d5c6abbf3bfa9833cd7568af6886b887.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/142134-75/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 142134-75 and what is the price?","answer":"The Amphenol 142134-75 is available to order through independent distribution. Submit an RFQ for current pricing and lead time — availability is confirmed at quote time. No stock or price figures are published here."},{"question":"Is 142134-75 a BNC connector?","answer":"No, the 142134-75 is an SMB Mini connector, not a BNC. SMB uses a snap-on coupling mechanism and is smaller than BNC. The two are not mechanically or electrically interchangeable."},{"question":"What is the impedance of 142134-75?","answer":"The impedance is 75 Ohm. This is a key selection parameter — do not use this connector in a 50 Ohm system without accounting for the impedance mismatch."},{"question":"Does 142134-75 require special tools for termination?","answer":"No. The 142134-75 terminates via through-hole solder — a standard soldering iron or reflow process is sufficient. No crimp tool or specialized RF termination kit is needed for the PCB connection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/142134-75","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/142134-75 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}}