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商品編號:DSBC1T-A900J736N
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貓頭鷹 NF-A12x25 G2 PWM SSO2 12公分 磁穩軸承AAO防震靜音風扇

5.0
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$1,185
$2,185
  • 下一代性能
  • 出色的應用聲學效果
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2026/02/01
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商品詳情
  • Next-generation performanceG2 Building upon the success of the original NF-A12x25 the G2 version introduces arefined blade geometry and a novel motor design These advancements lead to asignificant boost in performance-to-noise efficiency allowing the NF-A12x25 G2 toachieve superior results across various applications including water cooling radiatorsheatsinks and case fan אןHighly optimised PQ curve for all applicationsThe NF-A12x25 G2s sophisticated aerodynamic design allows for a pressure to airflow(P/Q) curve that is extremely strong in the critical mid-section This means that the NF-A12x25 G2 is a true jack-of-all-trades with excellent performance in both static pressuredemanding and airflow demanding applicationsExcellent on-application acousticsWhile many fans produce unpleasant, high-pitched noises when installed in typicalapplications such as on heatsinks or radiators, the NF-A12x25 G2 has been carefullyfine-tuned for optimal on-application acoustics. It produces a smooth, pleasantfrequency profile and surprisingly low sound pressure levels (SPL) when workingagainst back pressure.Progressive-Bend impellerThe NF-A12x25 G2 features a unique Progressive-Bend impeller with FlowAcceleration Channels and winglets. Its nine blades are swept backwards close to thehub and progressively bent forward further out. Working in tandem with the CentrifugalTurbulator hub, this design not only helps to push more air towards the outer bladeareas where efficiency is higher but also assures maximum lift and near uniform loadingacross the entire blade span.Centrifugal Turbulator hubActing as a turbulator, the new Centrifugal Turbulator hub design improves flowattachment in the hub region. At the same time, its centrifugal driving motion pushes airoutwards from the hub area where efficiency is low due to the slow rotational speedtowards the outer, high-efficiency zones of the blades, thereby increasing overallefficiency by optimising fluid distribution across the impeller area.
  • Flow Acceleration ChannelsThe NF-A12x25 G2 impeller features suction side Flow Acceleration Channels Byspeeding up the airflow at the crucial outer blade regions this measure reduces suctionside flow separation and thus leads to better efficiency and lower vortex noiseWingletsWinglets can help to reduce tip vortices that are caused by the pressure differentialbetween the suction and the pressure side of fan blades but bear the risk of reducingefficiency due to extra fluid displacement in high velocity regions The NF-A12x25 G2ssmall winglets have been carefully fine-tuned to provide consistent efficiency gainsworking in tandem with its Progressive Bend blade geometry Flow AccelerationChannels and frameUltra-tight tip clearanceThe NF-A12x25 G2 has an extremely tight tip clearance (distance between the bladetips and the inside of the frame) of only 0.5mm. This highly ambitious design helps theNF-A12x25 G2 to work more efficiently against back pressure such as on heatsinks orradiators, by reducing leak flows through the gap between impeller and frame.Sterrox® liquid-crystal polymer compoundThe NF-A12x25 G2s impeller is made from Noctuas novel liquid-crystal polymer (LCP) compound that features extreme tensile strength, an exceptionally lowthermal expansion coefficient and damping characteristics that are ideal for reducingresonance and vibration phenomena in advanced fan-blade designs.AAOAAO frameNoctuas AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctuas proprietary Stepped Inlet Design and Inner SurfaceMicrostructures, both of which further refine the fans performance/noise efficiency.Stepped Inlet DesignNoctuas Stepped Inlet Design adds turbulence to the influx in order to facilitate thetransition from laminar flow to turbulent flow, which reduces tonal intake noise,improves flow attachment and increases suction capacity, especially in space-restrictedenvironments.
  • Inner Surface MicrostructuresWith the tips of the fan blades ploughing through the boundary layer created by theInner Surface Microstructures flow separation from the suction side of the blades issignificantly suppressed which results in reduced blade passing noise and improvedairflow and pressure efficiencyIntegrated anti-vibration padsIntegrated anti-vibration pads made from extra-soft silicone minimise the transmissionof minute vibrations while maintaining full compatibility with all standard screws andmost other mounting mechanismsAnti-vibration gasket for water cooling radiatorsThe NF-A12x25 G2 includes an NA-AVG1 silicone gasket that can be used wheninstalling the fan on water cooling radiators or other applications that benefit from atighter seal with the fan The gasket helps to damp minute vibrations and to reduce airloss between the fan and the radiator for optimal cooling performanceIntake side spacer for suction applications (available separately)If space allows, the NF-A12x25 G2 can be combined with the optional NA-IS1-12 inletside spacer to reduce influx turbulences in pull type applications where the fan drawsair through a , mesh filter or perforated panel In many configurations, this reductionin turbulence can enhance airflow performance and further improve the fans suctionacoustics bearingThe NF-A12x25 G2 features the further optimised second generation of Noctuasrenowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer tothe axis to provide even better stabilisation, precision and durability.Metal bearing shellIn order to guarantee the highest possible degree of manufacturing precision, minimumtolerance and excellent long-term stability, the NF-A12x25 G2 sports a CNC milledbearing shell made entirely from brass.
  • eta motor with NE-FD6 PWM ICNoctuas new eta motor sets new standards in energy efficiency thanks to itsextremely low electric impedance and the latest NE-FD6 drive system with itsintegrated, ultra-sensitive Hall effect sensor that provides super-precise commutationperformance This not only enables it to convert a minimal electric input into amaximum power-output with hardly any losses, but also works in tandem with Noctuasproven Smooth Commutation Drive 2 technology to make the etaPERF motor runnear-inaudibleSupra TorqueMost fans become slightly slower when working against back pressure such as onheatsinks and radiators, which results in reduced performance Enabled by the newNA-FD6 driver IC, Noctuas Supra Torque technology allows the fan to leverageadditional torque headroom when required in order to keep its RPM speed at thedesired level no matter the airflow resistance, ensuring consistent performance even inthe most demanding conditionsPWMPWM control with wide speed rangeThe NF-A12x25 G2 PWM can be PWM-controlled from its maximum speed of 1800rpmall the way down to 360rpm. This makes it possible to adjust the fan for maximumperformance or near-silent operation using either automatic, temperature-basedmotherboard speed control or manual controllers such as the NA-FC1.Stops at 0% PWMWhen the fan is set to 0% PWM duty cycle by the motherboard or PWM fan controller, itwill stop. This makes it ideal for creating setups with semi-passive cooling thatautomatically turn the fans off and thus run completely silent at idle if thermals allow.Smooth Commutation Drive 2The latest version of Noctuas advanced Smooth Commutation Drive system ensuressuperb running smoothness by eliminating torque variations and switching noises. Thismakes the fan remarkably quiet even at very close distances.
  • Low-Noise AdaptorThe NF-A12x25 G2 PWM is supplied with a Low-Noise Adaptor (LNA) that reducesthe maximum fan speed from 1800 to 1500rpm. The L.N.A. can be used either to runthe fan at a fixed speed of 1500rpm or to cap the maximum speed when usingautomatic PWM control.Extensive cabling optionsThe fans short 20cm primary cable minimises cable clutter in typical applications whilethe supplied 30cm extension provides extended reach when necessary. Both cablesare fully sleeved and a 4-pin y-cable allows the connection of a second fan to the samePWM fan header for automatic controlAdvanced protection featuresProtected against reverse polarity over voltage and over current (short-circuits), the fanis suitable for use in challenging electrical environments. At the same time, its ultra-lowEMC emissions make it ideal for applications where electrical interference is critical.Last but not least, its locked rotor and overloading protection add extra safety insituations where the fan may be blocked mechanically.Safety certificationsUnlike many cheap fans, the NF-A12x25 G2 has been thoroughly tested for electricalsafety, immunity and radiated emission. Carrying CE, TÜV, UKCA and UL certificationsand meeting all applicable standards (EN 62368-1, EN 55035, EN 55032, UL-507), it isa safe, quality device through and through.
  • SizeMounting hole spacingConnector & pin-configurationCable lengthBearingBlade geometryFrame technologyMaterial120x120x25 mm105x105 mm4-pin PM20cm 30cm NA-EC1 extension cableSSO2Progressive-Bend ImpellerAAO Advanced Acoustic Optimisation)Sterrox® LCP1800 RPMRotational speed ( 10%)Rotational speed with LNA. ( 10%)1500 RPMAirflow107.3 hAirflow with L.N.A.87.2 hAcoustical noise22.5 dB(A)Acoustical noise with L.N.A.18.1 dB(A)Static pressure3.14 mm Static pressure with L.N.A.1.71 mm Input power (max.)1.8 WMax. input currentOperating voltageMTTFScope of delivery0.15 A12 V 150,000 hNA-RC7 Low-Noise Adaptor (L.N.A.) NA-YC1 4-pin PWM splitter cable NA-EC1 30cm extension cable NA-AV2 anti-vibration mounts NA-AVG1 anti-vibration gasket for water cooling radiators Fan screws
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