{"product_id":"sunon-ub5u3-724-fan","title":"SUNON UB5U3-724 DC Axial Fan 5VDC 30x30x3mm 0.08A","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px;}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;}.nxs-industrial-product-page{background:linear-gradient(180deg,#eef6fb 0%,#f7fafc 35%,#eef3f7 100%);color:var(--text-main);line-height:1.75;-webkit-font-smoothing:antialiased;overflow:hidden;}.nxs-industrial-product-page .container{width:92%;max-width:1120px;margin:0 auto;padding-bottom:34px;}.nxs-industrial-product-page 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*::after{transition:none!important;}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSUNON in Selected Replacement-Part Listings; Manufacturer Attribution Not Independently Confirmed by a SUNON Datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eUB5U3-724\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eDC Axial Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eUltra-Thin Miniature DC Cooling Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommercial Model Alias\u003c\/td\u003e\n\u003ctd\u003eUB5U3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommercial Size Classification\u003c\/td\u003e\n\u003ctd\u003e3003 Miniature Cooling Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow Configuration\u003c\/td\u003e\n\u003ctd\u003eAxial Cooling Fan According to Multiple Exact-Model Commercial Listings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e30 x 30 x 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommercial Dimensions in Centimeters\u003c\/td\u003e\n\u003ctd\u003e3 x 3 x 0.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC According to Multiple Exact-Model Commercial Listings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplier-Listed Operating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e3.3-5.5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplier-Listed Current\u003c\/td\u003e\n\u003ctd\u003e0.08 A (80 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalculated Electrical Power\u003c\/td\u003e\n\u003ctd\u003e0.40 W, Calculated from 5 VDC x 0.08 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eUltra-Thin 3 mm Design\u003c\/h3\u003e\n\u003cp\u003eThe UB5U3-724 is marketed as a 30 x 30 x 3 mm miniature cooling fan. Its unusually thin profile is intended for compatible electronic assemblies where installation depth is limited.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e5 VDC Low-Voltage Operation\u003c\/h3\u003e\n\u003cp\u003eMultiple replacement-part suppliers specify 5 VDC and an operating voltage range of 3.3-5.5 VDC. Confirm the exact electrical requirements against the supplied fan before connecting power.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e15000 RPM Supplier-Listed Speed\u003c\/h3\u003e\n\u003cp\u003eCommercial listings consistently identify a 15000 RPM operating speed. This figure is a supplier-reported specification rather than a value independently confirmed in a SUNON manufacturer datasheet.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e80 mA Published Current\u003c\/h3\u003e\n\u003cp\u003eThe fan is listed at 0.08 A current. At the stated 5 VDC supply, this corresponds mathematically to approximately 0.40 W, although an individual manufacturer-rated power specification was not located.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCommercial Fluid Bearing Design\u003c\/h3\u003e\n\u003cp\u003eReplacement suppliers describe the model with a hydro or fluid bearing system. Exact bearing construction and operating-life characteristics should be confirmed for the particular supplied version.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eMultiple Wiring Configurations\u003c\/h3\u003e\n\u003cp\u003eTwo-wire and three-wire versions are both advertised under the UB5U3-724 designation. Buyers should select the correct wiring configuration, connector and cable arrangement for their equipment rather than relying on the model number alone.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMiniature embedded electronic equipment ventilation\u003c\/li\u003e\n\u003cli\u003eCompact low-voltage circuit cooling assemblies\u003c\/li\u003e\n\u003cli\u003ePortable electronic equipment with limited internal clearance\u003c\/li\u003e\n\u003cli\u003eSmall electronic instrumentation thermal management\u003c\/li\u003e\n\u003cli\u003eMiniature controller and computing module ventilation\u003c\/li\u003e\n\u003cli\u003eCompact electronic enclosures requiring a 3 mm thick fan\u003c\/li\u003e\n\u003cli\u003eEquipment maintenance requiring compatible 5 VDC miniature cooling fans\u003c\/li\u003e\n\u003cli\u003eReplacement of a matching UB5U3-724 cooling fan with verified wiring and dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the UB5U3-724 miniature cooling fan. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please specify whether you require a SUNON-labeled version, two-wire or three-wire connection, and the exact cable or connector configuration to help identify the correct item.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is UB5U3-724?\u003c\/strong\u003e\u003cbr\u003eUB5U3-724 is an ultra-thin miniature cooling fan commercially described as a 5 VDC, 30 x 30 x 3 mm unit. Several suppliers list a 0.08 A current rating and 15000 RPM speed. The designation appears in both SUNON-labeled and other branded listings.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs UB5U3-724 manufactured by SUNON?\u003c\/strong\u003e\u003cbr\u003eSeveral replacement suppliers and marketplace sellers advertise UB5U3-724 as SUNON. However, a third-party product manual attributes the same model number to NUVCOL, and a SUNON manufacturer datasheet independently confirming the model was not located. The actual brand should be established from the supplied fan and traceable manufacturer information.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated voltage of UB5U3-724?\u003c\/strong\u003e\u003cbr\u003eThe commonly listed rated voltage is 5 VDC. Several sellers also report a working voltage range of 3.3-5.5 VDC. These are commercial specifications and should be checked against the actual fan configuration.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of UB5U3-724?\u003c\/strong\u003e\u003cbr\u003eMultiple exact-model listings give nominal dimensions of 30 x 30 x 3 mm, equivalent to 3 x 3 x 0.3 cm. Exact mounting-hole dimensions, frame tolerances and cable-clearance requirements were not independently verified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated current?\u003c\/strong\u003e\u003cbr\u003eSeveral commercial product specifications list 0.08 A, equivalent to 80 mA. A separate original manufacturer specification establishing maximum current or startup current was not located.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the power consumption?\u003c\/strong\u003e\u003cbr\u003eUsing the commonly listed voltage of 5 VDC and current of 0.08 A, calculated input power is approximately 0.40 W. This is an engineering calculation, not a separately verified manufacturer power rating. Startup power and maximum input power remain unverified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated fan speed?\u003c\/strong\u003e\u003cbr\u003eMultiple commercial listings advertise 15000 RPM. This speed has not been independently confirmed from a SUNON manufacturer datasheet for UB5U3-724, so it should be treated as a supplier-published reference.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the airflow and static pressure ratings?\u003c\/strong\u003e\u003cbr\u003eAn exact-model airflow rating in CFM or m³\/h and maximum static pressure rating were not independently located. Values from other miniature cooling fans should not be applied without confirming the individual product's performance specifications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat bearing system does UB5U3-724 use?\u003c\/strong\u003e\u003cbr\u003eSeveral sellers describe a hydro or fluid bearing. An independent original manufacturer document verifying the bearing construction and lifetime of the complete model was not located. Check the particular supplied version if bearing type is critical.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the acoustical noise level?\u003c\/strong\u003e\u003cbr\u003eSupplier figures are inconsistent. One marketplace listing reports 10-15 dB(A), while another lists 28 dB(A). Without consistent manufacturer test data, neither figure can be presented as a verified acoustic specification for all UB5U3-724 configurations.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes UB5U3-724 use two wires or three wires?\u003c\/strong\u003e\u003cbr\u003eBoth versions are advertised by commercial suppliers. Two-wire listings describe standard DC power connections; three-wire listings do not consistently document the additional lead's electrical function. A replacement specialist also offers a version without an attached power cable. Confirm the actual cable, connector and pinout, and do not assume the third wire is a tachometer or PWM lead without documentation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering UB5U3-724?\u003c\/strong\u003e\u003cbr\u003eConfirm the actual manufacturer, complete model number, 5 VDC supply, 0.08 A commercial current rating, nominal 30 x 30 x 3 mm dimensions, required fan speed, bearing type, mounting-hole layout, airflow direction, connector pitch, cable length and electrical wiring. Select the correct two-wire, three-wire or cable-free assembly for the equipment. As the model is advertised under more than one brand and the published wiring and noise details differ, compare the installed fan's markings and physical construction before purchasing a replacement.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SUNON","offers":[{"title":"Default Title","offer_id":67832042487887,"sku":"LL1-SU-UB5U3724","price":23.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/UB5U3-724-02.jpg?v=1792629809","url":"https:\/\/yunshuotrade.com\/products\/sunon-ub5u3-724-fan","provider":"yunshuotrade","version":"1.0","type":"link"}