{"product_id":"delta-pfm0412hs-p-n-a3c40201803-4cm-server-case-cooling-fan","title":"Delta PFM0412HS P\/N A3C40201803 4CM Server Case Cooling Fan","description":"\u003cdiv class=\"koeed-container\" style=\"width:100%;color:#333;line-height:1.7;\"\u003e\n\n  \u003cstyle\u003e\n    .koeed-container h2,\n    .koeed-container h3{\n      color:#16c8c8;\n      margin-top:32px;\n      margin-bottom:14px;\n    }\n\n    .koeed-container table{\n      width:100%;\n      border-collapse:collapse;\n    }\n\n    .koeed-container th,\n    .koeed-container td{\n      border:1px solid #eeeeee;\n      padding:10px;\n      text-align:left;\n      vertical-align:top;\n    }\n\n    .koeed-container tr:nth-child(odd){\n      background:#f4fcfc;\n    }\n\n    .koeed-container tr:nth-child(even){\n      background:#fafafa;\n    }\n\n    .koeed-highlight{\n      color:#16c8c8;\n      font-weight:bold;\n    }\n\n    .koeed-note{\n      background:#f4fcfc;\n      border-left:4px solid #16c8c8;\n      padding:14px;\n      margin-top:18px;\n    }\n\n    .koeed-list li{\n      margin-bottom:8px;\n    }\n  \u003c\/style\u003e\n\n  \u003ch2\u003eEngineer's Quick Brief\u003c\/h2\u003e\n\n  \u003cul class=\"koeed-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDelta PFM0412HS\u003c\/strong\u003e is a compact \u003cstrong\u003e40 mm high-speed DC axial cooling fan\u003c\/strong\u003e engineered for server chassis, telecom hardware, industrial IPCs, and high-density electronic cooling applications.\u003c\/li\u003e\n\n    \u003cli\u003eThe fan operates on \u003cstrong\u003e12V DC\u003c\/strong\u003e and is optimized for \u003cstrong\u003ehigh static pressure airflow\u003c\/strong\u003e, making it suitable for restricted airflow environments such as rack servers and blade systems.\u003c\/li\u003e\n\n    \u003cli\u003ePart number \u003cstrong\u003eA3C40201803\u003c\/strong\u003e is commonly associated with OEM server cooling assemblies requiring reliable thermal management and continuous-duty operation.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"koeed-note\"\u003e\n    Delta Electronics server cooling fans are widely recognized in enterprise hardware environments for long operational lifespan, stable RPM control, and efficient heat dissipation under continuous load conditions.\n  \u003c\/div\u003e\n\n  \u003ch2\u003eSEO Introduction\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The \u003cstrong\u003eDelta PFM0412HS\u003c\/strong\u003e cooling fan, identified by part number \u003cstrong\u003eA3C40201803\u003c\/strong\u003e, is a high-performance \u003cstrong\u003e40 mm brushless DC server fan\u003c\/strong\u003e designed for compact electronic cooling systems. Commonly installed in enterprise servers, storage systems, industrial computers, telecom chassis, and network switches, the PFM0412HS provides high airflow efficiency in limited installation spaces.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Engineers and IT maintenance teams frequently search for this model using keywords such as \u003cstrong\u003eDelta 40mm server fan\u003c\/strong\u003e, \u003cstrong\u003ePFM0412HS specifications\u003c\/strong\u003e, \u003cstrong\u003eA3C40201803 replacement fan\u003c\/strong\u003e, \u003cstrong\u003e12V DC server cooling fan\u003c\/strong\u003e, and \u003cstrong\u003ehigh static pressure cooling fan\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n  \u003cdiv style=\"overflow-x:auto;\"\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003eParameter\u003c\/th\u003e\n        \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eManufacturer\u003c\/td\u003e\n        \u003ctd\u003eDelta Electronics\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eModel\u003c\/td\u003e\n        \u003ctd\u003ePFM0412HS\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003ePart Number\u003c\/td\u003e\n        \u003ctd\u003eA3C40201803\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eFan Type\u003c\/td\u003e\n        \u003ctd\u003eBrushless DC Axial Cooling Fan\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eRated Voltage\u003c\/td\u003e\n        \u003ctd\u003e12V DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eFan Size\u003c\/td\u003e\n        \u003ctd\u003e40 mm × 40 mm × 20 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eBearing Type\u003c\/td\u003e\n        \u003ctd\u003eDual Ball Bearing\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eFrame Material\u003c\/td\u003e\n        \u003ctd\u003eIndustrial Thermoplastic\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eImpeller Material\u003c\/td\u003e\n        \u003ctd\u003eReinforced Plastic\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eMotor Type\u003c\/td\u003e\n        \u003ctd\u003eBrushless DC Motor\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eAirflow Direction\u003c\/td\u003e\n        \u003ctd\u003eAxial Exhaust Cooling\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eSpeed Class\u003c\/td\u003e\n        \u003ctd\u003eHigh Speed\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eStatic Pressure Performance\u003c\/td\u003e\n        \u003ctd\u003eOptimized for restricted airflow environments\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eConnector Type\u003c\/td\u003e\n        \u003ctd\u003eServer OEM connector configuration\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eSignal Support\u003c\/td\u003e\n        \u003ctd\u003eTachometer \/ PWM support depending on OEM configuration\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eNoise Profile\u003c\/td\u003e\n        \u003ctd\u003eHigh-performance server cooling acoustic profile\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eTypical Application\u003c\/td\u003e\n        \u003ctd\u003eServers, storage systems, switches, industrial PCs\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eDuty Cycle\u003c\/td\u003e\n        \u003ctd\u003eContinuous operation\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eCooling Role\u003c\/td\u003e\n        \u003ctd\u003eCPU zone, power supply, VRM, chassis airflow\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eInstallation Orientation\u003c\/td\u003e\n        \u003ctd\u003eHorizontal or vertical mounting\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eEnvironmental Suitability\u003c\/td\u003e\n        \u003ctd\u003eHigh-density electronic equipment cooling\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eApplication Matrix\u003c\/h2\u003e\n\n  \u003cdiv style=\"overflow-x:auto;\"\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003eIndustry\u003c\/th\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eEngineering Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eEnterprise Servers\u003c\/td\u003e\n        \u003ctd\u003eRack server thermal management\u003c\/td\u003e\n        \u003ctd\u003eMaintains stable airflow across CPUs and memory modules\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eTelecommunications\u003c\/td\u003e\n        \u003ctd\u003eNetwork switch cooling\u003c\/td\u003e\n        \u003ctd\u003eImproves thermal reliability in dense communication hardware\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eIndustrial Automation\u003c\/td\u003e\n        \u003ctd\u003eIndustrial IPC cooling\u003c\/td\u003e\n        \u003ctd\u003eSupports continuous-duty operation in enclosed cabinets\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eData Storage Systems\u003c\/td\u003e\n        \u003ctd\u003eRAID and storage chassis airflow\u003c\/td\u003e\n        \u003ctd\u003ePrevents localized heat accumulation around drive arrays\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003ePower Electronics\u003c\/td\u003e\n        \u003ctd\u003ePower module cooling\u003c\/td\u003e\n        \u003ctd\u003eEnhances long-term component stability and thermal efficiency\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eEmbedded Systems\u003c\/td\u003e\n        \u003ctd\u003eCompact embedded cooling assemblies\u003c\/td\u003e\n        \u003ctd\u003eProvides high airflow in space-constrained designs\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n  \u003ch3\u003eWhat does the “HS” designation in PFM0412HS indicate?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    “HS” generally indicates a high-speed performance class optimized for increased airflow and higher static pressure compared to standard fan variants.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhy are dual ball bearings important in server cooling fans?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    Dual ball bearing structures improve operational lifespan, thermal resistance, and reliability during continuous 24\/7 server operation.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCan this fan be used in non-server applications?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    Yes. The fan can also be installed in industrial control systems, embedded hardware, telecom devices, power electronics, and compact ventilation assemblies requiring high-pressure airflow.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat happens if airflow direction is installed incorrectly?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    Incorrect airflow orientation may cause thermal hotspots, unstable chassis pressure balance, and elevated component temperatures inside the enclosure.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eDoes the PFM0412HS support PWM speed control?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    Some OEM configurations support PWM and tachometer monitoring, but implementation depends on the server manufacturer and connector wiring specification.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhy do server cooling fans operate at higher noise levels?\u003c\/h3\u003e\n\n  \u003cp\u003e\n    High-density enterprise hardware requires stronger airflow and static pressure, which typically results in higher rotational speeds and increased acoustic output.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eCross-Reference Guide\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Delta PFM0412HS belongs to a broader family of compact high-performance 40 mm server cooling fans widely used in enterprise and industrial hardware platforms.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"overflow-x:auto;\"\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003eRelated Model\u003c\/th\u003e\n        \u003cth\u003eFan Size\u003c\/th\u003e\n        \u003cth\u003eVoltage\u003c\/th\u003e\n        \u003cth\u003eApplication Relationship\u003c\/th\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003ePFB0412UHE\u003c\/td\u003e\n        \u003ctd\u003e40 × 40 × 28 mm\u003c\/td\u003e\n        \u003ctd\u003e12V DC\u003c\/td\u003e\n        \u003ctd\u003eHigher airflow server cooling configuration\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eFFB0412SHN\u003c\/td\u003e\n        \u003ctd\u003e40 × 40 × 28 mm\u003c\/td\u003e\n        \u003ctd\u003e12V DC\u003c\/td\u003e\n        \u003ctd\u003eHigh static pressure industrial cooling\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eAFB0412HHB\u003c\/td\u003e\n        \u003ctd\u003e40 × 40 × 20 mm\u003c\/td\u003e\n        \u003ctd\u003e12V DC\u003c\/td\u003e\n        \u003ctd\u003eSimilar compact chassis cooling architecture\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003ePFM0412HE\u003c\/td\u003e\n        \u003ctd\u003e40 × 40 × 20 mm\u003c\/td\u003e\n        \u003ctd\u003e12V DC\u003c\/td\u003e\n        \u003ctd\u003eRelated performance-class server fan\u003c\/td\u003e\n      \u003c\/tr\u003e\n\n      \u003ctr\u003e\n        \u003ctd\u003eEFB0412VHD\u003c\/td\u003e\n        \u003ctd\u003e40 × 40 × 20 mm\u003c\/td\u003e\n        \u003ctd\u003e12V DC\u003c\/td\u003e\n        \u003ctd\u003eHigh-speed electronic cooling applications\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"koeed-note\"\u003e\n    Cooling fan interchange validation should include voltage rating, connector pinout, airflow direction, fan thickness, RPM profile, and server firmware compatibility before replacement.\n  \u003c\/div\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\":\"https:\/\/schema.org\",\n    \"@type\":\"FAQPage\",\n    \"mainEntity\":[\n      {\n        \"@type\":\"Question\",\n        \"name\":\"What does the HS designation in PFM0412HS indicate?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"HS generally indicates a high-speed cooling fan optimized for increased airflow and higher static pressure.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"Why are dual ball bearings important in server cooling fans?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Dual ball bearings improve thermal resistance, durability, and operational lifespan during continuous server operation.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"Can this fan be used in non-server applications?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Yes. The fan can be used in industrial electronics, telecom equipment, embedded systems, and power control hardware.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"What happens if airflow direction is installed incorrectly?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Incorrect airflow orientation can create thermal hotspots and reduce cooling efficiency inside the enclosure.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"Does the PFM0412HS support PWM speed control?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Some OEM configurations support PWM and tachometer functions depending on connector wiring and server platform implementation.\"\n        }\n      },\n      {\n        \"@type\":\"Question\",\n        \"name\":\"Why do server cooling fans operate at higher noise levels?\",\n        \"acceptedAnswer\":{\n          \"@type\":\"Answer\",\n          \"text\":\"Server cooling systems require high airflow and static pressure, which typically results in higher operating RPM and acoustic output.\"\n        }\n      }\n    ]\n  }\n  \u003c\/script\u003e\n\n\u003c\/div\u003e","brand":"DELTA","offers":[{"title":"Default Title","offer_id":45446626083001,"sku":"155860172320","price":93.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/1_62674e7c-6cdf-4c6f-ac82-8da39508c36b.webp?v=1779639243","url":"https:\/\/koeed.com\/products\/delta-pfm0412hs-p-n-a3c40201803-4cm-server-case-cooling-fan","provider":"KOEED","version":"1.0","type":"link"}