{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1408340-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1408340-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1408340-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/1408340-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity QMA receptacle, 50 Ohm, DC to 6 GHz, 335 V, panel mount bulkhead rear-side nut, solder shield termination, gold-plated beryllium copper center contact, snap-on coupling, extended PTFE insulation.","salesMarkdown":"## QMA Bulkhead Receptacle — 50 Ohm, DC to 6 GHz The 1408340-1: The QMA interface uses a snap-on fastening mechanism that provides quick, push-to-engage mating while maintaining the RF performance of a threaded SMA — a common choice where panel space is tight and the installer needs one-hand blind-mate capability. This single-port version is rated DC to 6 GHz with a maximum insertion loss of 0.25 dB, covering most cellular bands, GPS /L2, ISM, and Wi-Fi up to 6 GHz. Extended insulation on the PTFE sleeve adds creepage distance for the 335 V rating, reducing the risk of flashover in humid or high-altitude environments. The shield termination is solder — the installer solders the cable braid or a grounding strap to the body after the nut is tightened. The center contact termination is also solder, so the cable centre conductor is soldered directly into the socket contact. There is no crimp step; the assembly requires a soldering iron and a torque wrench for the nut. That is a modest figure — adequate for a panel port that gets connected a few times during installation and occasional service, but not designed for daily disconnect/reconnect in a test lab or portable equipment. The gold-plated beryllium copper centre contact resists corrosion and maintains contact resistance across those cycles, but the snap-on coupling mechanism itself will wear with repeated engagement. For a port that sees frequent reconnection, consider a threaded SMA variant with a higher cycle rating.","metaTitle":"TE Connectivity 1408340-1 QMA Receptacle, 50 Ohm, 6 GHz","metaDescription":"TE Connectivity 1408340-1 QMA receptacle, 50 Ohm, DC to 6 GHz, 0.25 dB insertion loss, 335 V, snap-on coupling, bulkhead rear-side nut mount, gold-plated","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Series":"-","Package":"Bulk","Features":"Extended Insulation","Includes":"-","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"-","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"100","Mounting Type":"Panel Mount","Connector Type":"Receptacle, Female Socket","Fastening Type":"Snap-On","Insertion Loss":"0.25dB","Product Status":"Active","Voltage Rating":"335 V","Connector Style":"QMA","Frequency - Max":"6 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Rear Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"1408340","Contact Termination":"Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-40°C~80°C","Center Contact Plating":"Gold","Center Contact Material":"Beryllium Copper"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.9789","stockQuantity":53,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/6c4868ed02e89dcc741aae38bcc96fce.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the impedance of 1408340-1?","answer":"The 1408340-1 is a 50 Ohm QMA receptacle, specified for 50 Ohm system impedance. This matches standard RF test equipment, antennas, and cable assemblies in cellular, GPS, and ISM bands."},{"question":"Is 1408340-1 RoHS compliant?","answer":"Yes, the 1408340-1 is RoHS compliant. The materials — brass body, nickel finish, PTFE dielectric, beryllium copper centre contact — do not contain restricted substances under the current directive."},{"question":"Does 1408340-1 have extended insulation?","answer":"Yes, the 1408340-1 features extended insulation. The PTFE dielectric sleeve is extended beyond the standard QMA interface to provide additional creepage distance, supporting the 335 V rating in humid or high-altitude environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1408340-1","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/te-connectivity-amp-connectors/1408340-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}