{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UM-QR-1(40)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"UM-QR-1~140~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/UM-QR-1~140~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/UM-QR-1(40)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose UM Series U.FL (UMCC) receptacle, male pin, 50 Ohm, 1 GHz, panel mount bulkhead, solder cup, gold body, 1000 mating cycles.","salesMarkdown":"## Hirose UM-QR-1(40) — U.FL (UMCC) Panel-Mount Receptacle, 50 Ohm, 1 GHz The Hirose UM-QR-1(40) is a U.FL (UMCC) series receptacle with a male pin contact, designed for miniature coaxial interconnects in space-constrained RF assemblies. The connector is panel-mounted via a bulkhead rear-side nut, with the shield terminated through a solder cup — a configuration that lets the receptacle serve as a fixed feedthrough point on an enclosure wall. The body is machined from brass with a gold finish, and the centre contact is also brass with gold plating — the gold-over-brass construction resists corrosion and maintains consistent contact resistance across the 1000 mating cycles the snap-on fastening type supports. ## 50 Ohm Impedance and 1 GHz Bandwidth — RF Signal Path Fit The 1 GHz ceiling means the connector is usable for cellular (LTE, 5G sub-6 GHz), ISM-band (2.4 GHz is above this limit), GPS (1.575 GHz is also above), and broadcast radio applications up to UHF. For designs requiring operation above 1 GHz, a higher-frequency U.FL variant or an SMA interface would be the next step. The snap-on fastening gives quick field mate/unmate without tools, and the 1000-cycle rating supports repeated access during test or maintenance without contact degradation. ## Panel Mount with Bulkhead Nut — Enclosure Feedthrough Installation The UM-QR-1(40) mounts through a panel hole and is secured from the rear with the supplied nut and lockwasher. The solder cup termination on the shield side accepts a coaxial cable centre conductor and braid — typical for a pigtail assembly where the cable is soldered directly to the receptacle before the nut is tightened. The bulkhead feature means the connector body is grounded to the panel, providing a reference plane for the shield. This is a common installation for an external antenna port on a metal enclosure, where the receptacle becomes the fixed half and the mating U.FL plug on the cable is snapped on from outside.","metaTitle":"Hirose UM-QR-1(40) U.FL (UMCC) Receptacle, 50 Ohm, 1 GHz","metaDescription":"Hirose UM-QR-1(40) U.FL (UMCC) receptacle, male pin, 50 Ohm impedance, 1 GHz max, 1000 mating cycles, panel mount bulkhead. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Series":"UM","Package":"Bulk","Features":"-","Includes":"3 pcs - 1 Connector, 1 Lockwasher, 1 Nut","Impedance":"50 Ohms","Body Finish":"Gold","Cable Group":"-","Body Material":"Brass","Housing Color":"Gold","Mating Cycles":"1000","Mounting Type":"Panel Mount","Connector Type":"Receptacle, Male Pin","Fastening Type":"Snap-On","Insertion Loss":"-","Product Status":"Active","Connector Style":"U.FL (UMCC)","Frequency - Max":"1 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead - Rear Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"UM-QR","Contact Termination":"Solder Cup","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-55°C ~ 85°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.6900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/db6b9888c5dc705ad198e31df81fb0c2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Hirose UM-QR-1(40) connector?","answer":"The Hirose UM-QR-1(40) is a U.FL (UMCC) series receptacle with a male pin contact, rated for 50 Ohm impedance and 1 GHz maximum frequency. It is a panel-mount bulkhead connector with a snap-on fastening, gold-plated brass body and centre contact, and PTFE dielectric. It comes as a three-piece set including the connector, lockwasher, and nut."},{"question":"What is the impedance of UM-QR-1(40)?","answer":"The UM-QR-1(40) has a 50 Ohm impedance, which is the standard for most RF coaxial systems and matches common cable types like RG-174 and RG-316."},{"question":"Is the UM-QR-1(40) available via RFQ confirmation anywhere?","answer":"The UM-QR-1(40) is sourced to order against an RFQ through independent distribution. Stock levels and lead time are confirmed at the time of quote — no live stock count is published on this listing."},{"question":"How many mating cycles does UM-QR-1(40) have?","answer":"The UM-QR-1(40) is rated for 1000 mating cycles, which is high for a snap-on coaxial connector and supports repeated field connect/disconnect without contact wear."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/UM-QR-1~140~2","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/hirose-electric-co-ltd/UM-QR-1~140~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}