{"product_id":"sunon-mec0251v3-000u-a99-fan","title":"SUNON MEC0251V3-000U-A99 DC Axial Fan 12VDC 120x120x25mm 1.9W","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-blue:#dcebf5;--steel-blue-2:#edf6fb;--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-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 34px;position:relative;isolation:isolate;overflow:hidden;color:var(--text-main);line-height:1.75;-webkit-font-smoothing:antialiased;}.nxs-industrial-product-page .container{width:92%;max-width:1120px;margin:0 auto;padding-bottom:34px;}.nxs-industrial-product-page main{padding-top:8px;}.nxs-industrial-product-page .section{position:relative;overflow:hidden;background:var(--surface);margin:22px auto;padding:36px 30px;border:1px solid var(--steel-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);}.nxs-industrial-product-page .section::before{content:'';position:absolute;left:0;top:0;width:5px;height:100%;background:linear-gradient(180deg,var(--industrial-blue-3),var(--industrial-blue));}.nxs-industrial-product-page .section h2{position:relative;display:inline-flex;align-items:center;gap:10px;font-size:25px;line-height:1.3;color:var(--industrial-navy);margin-bottom:24px;letter-spacing:-0.2px;}.nxs-industrial-product-page .section h2::before{content:'';width:28px;height:4px;flex:0 0 28px;border-radius:999px;background:linear-gradient(90deg,var(--industrial-blue-2),var(--industrial-cyan));}.nxs-industrial-product-page .section p{color:var(--text-main);}.nxs-industrial-product-page .spec-table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border:1px solid var(--steel-line);border-radius:var(--radius-md);background:#fff;}.nxs-industrial-product-page .spec-table tr{transition:background-color 0.2s ease;}.nxs-industrial-product-page .spec-table tr:nth-child(even){background:#f7fbfe;}.nxs-industrial-product-page .spec-table tr:hover{background:#eaf5fb;}.nxs-industrial-product-page .spec-table td{padding:13px 16px;border-bottom:1px solid #dbe7ef;vertical-align:top;color:#294658;}.nxs-industrial-product-page .spec-table tr:last-child td{border-bottom:none;}.nxs-industrial-product-page .spec-table td:first-child{position:relative;width:38%;font-weight:700;color:#0b456d;background:rgba(220,235,245,0.42);}.nxs-industrial-product-page .spec-table td:first-child::after{content:'';position:absolute;top:22%;right:0;width:1px;height:56%;background:#c7dce9;}.nxs-industrial-product-page .features{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:18px;}.nxs-industrial-product-page .card{position:relative;overflow:hidden;min-height:100%;background:linear-gradient(180deg,#ffffff 0%,#f4f9fc 100%);padding:22px 20px 21px;border:1px solid #d5e4ee;border-radius:var(--radius-md);box-shadow:0 6px 18px rgba(8,47,73,0.055);transition:transform 0.22s ease,box-shadow 0.22s ease,border-color 0.22s ease;}.nxs-industrial-product-page .card::before{content:'';position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--industrial-blue),var(--industrial-cyan));}.nxs-industrial-product-page .card::after{content:'';position:absolute;width:74px;height:74px;right:-28px;bottom:-30px;border:1px solid rgba(15,110,168,0.12);border-radius:50%;transition:transform 0.22s ease;}.nxs-industrial-product-page .card:hover{transform:translateY(-4px);border-color:#a9cadf;box-shadow:var(--shadow-hover);}.nxs-industrial-product-page .card:hover::after{transform:scale(1.25);}.nxs-industrial-product-page .card h3{position:relative;color:var(--industrial-blue);font-size:18px;line-height:1.35;margin-bottom:10px;padding-left:14px;}.nxs-industrial-product-page .card h3::before{content:'';position:absolute;left:0;top:0.25em;width:4px;height:1em;border-radius:4px;background:var(--industrial-blue-3);}.nxs-industrial-product-page .card p{color:#526a79;font-size:15px;}.nxs-industrial-product-page .section ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px 18px;padding-left:0;list-style:none;}.nxs-industrial-product-page .section li{position:relative;margin:0;padding:12px 14px 12px 38px;background:var(--surface-soft);border:1px solid #dbe8f0;border-radius:8px;color:#365264;}.nxs-industrial-product-page .section li::before{content:'';position:absolute;left:15px;top:50%;width:9px;height:9px;transform:translateY(-50%) rotate(45deg);background:var(--industrial-blue-2);box-shadow:0 0 0 4px rgba(15,110,168,0.1);}.nxs-industrial-product-page .section:nth-of-type(4) p{padding:18px 20px;background:linear-gradient(135deg,#edf7fc,#f9fcfe);border:1px solid #cfe4f1;border-left:4px solid var(--industrial-blue-2);border-radius:9px;color:#355267;}.nxs-industrial-product-page .section:last-of-type{counter-reset:faq;}.nxs-industrial-product-page .section:last-of-type \u003e p{position:relative;margin:0;padding:18px 18px 18px 54px;background:#f8fbfd;border:1px solid #d8e6ef;border-radius:9px;box-shadow:0 4px 12px rgba(8,47,73,0.035);transition:border-color 0.2s ease,background-color 0.2s ease;counter-increment:faq;}.nxs-industrial-product-page .section:last-of-type \u003e p:hover{background:#f1f8fc;border-color:#bfd8e7;}.nxs-industrial-product-page .section:last-of-type \u003e p::before{content:counter(faq,decimal-leading-zero);position:absolute;left:15px;top:17px;min-width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;background:var(--industrial-blue);color:#fff;font-size:11px;font-weight:700;letter-spacing:0.3px;box-shadow:0 5px 12px rgba(8,79,124,0.18);}.nxs-industrial-product-page .section:last-of-type \u003e p strong{display:inline-block;color:#0b456d;margin-bottom:5px;line-height:1.4;}.nxs-industrial-product-page .section:last-of-type \u003e br{display:block;content:'';margin:10px 0;}@media (max-width:760px){.nxs-industrial-product-page .container{width:100%;padding:0 12px 24px;}.nxs-industrial-product-page .section{padding:26px 17px 24px;margin:14px auto;border-radius:11px;}.nxs-industrial-product-page .section::before{width:4px;}.nxs-industrial-product-page .section h2{font-size:21px;margin-bottom:18px;}.nxs-industrial-product-page .section h2::before{width:20px;flex-basis:20px;}.nxs-industrial-product-page .spec-table{display:table;table-layout:fixed;}.nxs-industrial-product-page .spec-table td{padding:11px 9px;font-size:13px;line-height:1.55;overflow-wrap:anywhere;}.nxs-industrial-product-page .spec-table td:first-child{width:42%;}.nxs-industrial-product-page .features{grid-template-columns:1fr;gap:12px;}.nxs-industrial-product-page .card{padding:18px 17px;}.nxs-industrial-product-page .card:hover{transform:none;}.nxs-industrial-product-page .section ul{grid-template-columns:1fr;gap:9px;}.nxs-industrial-product-page .section li{padding:11px 12px 11px 36px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p{padding:16px 14px 16px 48px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px;}}@media (prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::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\" style=\"width: 100.137%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003eSUNON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003eMEC0251V3-000U-A99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003eDC Axial Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eProduct Series\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003eMagLev MEC Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eFan Type\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003eDC Brushless Tubeaxial Cooling Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eMotor Technology\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003eSUNON MagLev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003e120 x 120 x 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003e12 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eRated Power Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003e1.9 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eMaximum Power Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003e2.22 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eAcoustical Noise\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003e34 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.018%;\"\u003eFan Weight\u003c\/td\u003e\n\u003ctd style=\"width: 58.0555%;\"\u003e162 g\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\u003e12 VDC MagLev Cooling\u003c\/h3\u003e\n\u003cp\u003eThe SUNON MEC0251V3-000U-A99 features a two-phase, four-pole brushless DC motor with MagLev technology. Its rated 12 VDC supply and 1.9 W power consumption support compatible electronic equipment cooling.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e120 x 120 x 25 mm Frame\u003c\/h3\u003e\n\u003cp\u003eThe fan uses a nominal 120 mm square frame with a 25 mm thickness. The manufacturer drawing specifies 105 mm mounting-hole center spacing for installation in compatible equipment.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e2200 RPM Rated Speed\u003c\/h3\u003e\n\u003cp\u003eSUNON specifies a rated speed of 2200 RPM with a tolerance of ±10%. The documented electrical ratings are 161 mA rated current and 185 mA maximum current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e75 CFM Air Delivery\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer specifies 75 CFM airflow and 0.16 inH2O maximum static pressure. These values support evaluation of axial ventilation systems with appropriate cooling and airflow requirements.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003ePrecision Vapo Bearing\u003c\/h3\u003e\n\u003cp\u003eThe fan features SUNON's precision Vapo bearing system with a PBT thermoplastic frame and impeller. Its published acoustical noise rating is 34 dB(A) under defined manufacturer test conditions.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eAutomatic Restart and Polarity Protection\u003c\/h3\u003e\n\u003cp\u003eThe standard A99 configuration includes automatic restart following a locked rotor condition and polarity protection. Its two-wire electrical connection provides basic DC power wiring without separate monitoring or PWM input leads.\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\u003eIndustrial electrical control cabinet ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial DC power supply equipment cooling\u003c\/li\u003e\n\u003cli\u003eEmbedded computer and controller enclosure cooling\u003c\/li\u003e\n\u003cli\u003eTelecommunications and network equipment thermal management\u003c\/li\u003e\n\u003cli\u003eElectronic instrumentation forced-air ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery electrical compartment cooling\u003c\/li\u003e\n\u003cli\u003eCompatible 120 mm axial intake and exhaust cooling assemblies\u003c\/li\u003e\n\u003cli\u003eReplacement of matching SUNON MEC0251V3-000U-A99 DC axial fans\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 SUNON MEC0251V3-000U-A99 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.\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 SUNON MEC0251V3-000U-A99?\u003c\/strong\u003e\u003cbr\u003eMEC0251V3-000U-A99 is a SUNON MagLev MEC-series brushless DC axial cooling fan featuring a 120 x 120 x 25 mm housing, 12 VDC rated voltage and precision Vapo bearing system.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated voltage of MEC0251V3-000U-A99?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 12 VDC, an operating voltage range of 6-13.8 VDC and a starting voltage of 6 VDC at 25°C. Select a DC supply suitable for the complete equipment's electrical requirements.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of MEC0251V3-000U-A99?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 120 x 120 x 25 mm. SUNON's mechanical drawing specifies a 120 ±0.5 mm square frame, 25 +0.5\/-0 mm thickness and eight 4.3 ±0.3 mm mounting holes with 105 ±0.3 mm center spacing.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated current?\u003c\/strong\u003e\u003cbr\u003eSUNON specifies 161 mA rated current and 185 mA maximum current for MEC0251V3-000U-A99. These electrical values are documented in manufacturer specification D12017100G-00.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the power consumption?\u003c\/strong\u003e\u003cbr\u003eThe exact manufacturer datasheet specifies 1.9 W rated input power and 2.22 W maximum power consumption. The similarly named MFC0251V3-000U-A99 model is rated at 1.68 W and should not be confused with this MEC-series fan.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated fan speed?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 2200 RPM with a tolerance of ±10% at rated voltage. MEC0251V2-000U-A99 and MEC0251V1-000U-A99 are higher-speed versions with different electrical and airflow ratings.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat airflow does MEC0251V3-000U-A99 provide?\u003c\/strong\u003e\u003cbr\u003eThe published airflow rating is 75 CFM, approximately 127.4 m³\/h. Actual installed airflow depends on the ventilation system's resistance and the fan's operating point on its airflow-versus-static-pressure curve.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum static pressure?\u003c\/strong\u003e\u003cbr\u003eSUNON specifies 0.16 inH2O, approximately 39.8 Pa. The manufacturer datasheet includes an airflow-versus-pressure performance curve for cooling-system evaluation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat bearing system does MEC0251V3-000U-A99 use?\u003c\/strong\u003e\u003cbr\u003eThe fan uses SUNON's precision Vapo bearing system. The manufacturer reports a 70000-hour life expectancy reference at 40°C, 65% relative humidity and 90% confidence level under specified laboratory conditions. This is not an unconditional service-life guarantee.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the acoustical noise level?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 34 dB(A). This value is based on free-air operation in a semi-anechoic chamber with a microphone positioned one meter from the fan intake. Installed noise can vary with mounting conditions and airflow restrictions.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow is MEC0251V3-000U-A99 electrically connected?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer drawing specifies two UL 1007 24 AWG DC power leads: red positive and black negative. Lead length is 330 ±15 mm, with 5 ±0.3 mm stripped wire ends. The standard A99 version does not provide a separate tachometer or PWM control input. Automatic restart and polarity protection are included. SUNON advises against controlling the fan by PWM switching of the power or ground lead.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering MEC0251V3-000U-A99?\u003c\/strong\u003e\u003cbr\u003eConfirm the complete SUNON model number, 12 VDC supply, 161 mA rated current, 1.9 W input power, 2200 RPM speed, 75 CFM airflow, 0.16 inH2O static pressure, Vapo bearing, 120 x 120 x 25 mm frame, 105 mm mounting-hole center spacing and two-wire connection. The higher-speed MEC0251V1 and MEC0251V2 variants have different power and performance ratings. MFC0251V3-000U-A99 belongs to a different series and has a different electrical rating, while MEC0252V3-000U-A99 is a 24 VDC model. Do not substitute these fans without verifying mechanical, electrical and cooling compatibility.\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":67824572956751,"sku":"LL1-SU-MEC0251V3000UA99","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/MEC0251V3-000U-A99-01-_03.jpg?v=1792574197","url":"https:\/\/yunshuotrade.com\/products\/sunon-mec0251v3-000u-a99-fan","provider":"yunshuotrade","version":"1.0","type":"link"}