Sterrox® liquid-crystal polymer compound
The NF-A12x25’s impeller is made from Noctua’s novel Sterrox® liquid-crystal polymer (LCP) compound that features extreme tensile strength, an exceptionally low thermal expansion coefficient and damping characteristics that are ideal for reducing resonance and vibration phenomena in advanced fan-blade designs.
Ultra-tight tip clearance
The NF-A12x25 has a record tight tip clearance (distance between the blade tips and the inside of the frame) of only 0.5mm. This highly ambitious design sets a new benchmark for 120mm fans and helps the NF-A12x25 to work more efficiently against back pressure, such as on heatsinks or radiators, by reducing leak flows through the gap between impeller and frame.
Metal-reinforced motor hub
The centrepiece of the NF-A12x25’s motor hub is made entirely from steel and the axle mount is reinforced with an additional brass structure. In combination, both measures ensure ultimate precision and increased stability in the critical hub area.
USB power adaptor cable
The fan includes a USB power adaptor cable that allows it to run on power banks, devices with USB host ports or USB power supplies such as those used for smartphones, giving you near endless possibilities for using the fan in your home, in your car or wherever a need for cooling occurs!
Further resources
Want to know more on this topic? Explore relevant articles and resources.
NF-A12x25: technical backgrounds and manufacturing challenges
From material limitations to microscopic tolerances, the NF-A12x25 was one of Noctua's most challenging projects to date. But how did they overcome these obstacles?
NF-A12x25: performance comparison to NF-F12 and NF-S12A
See how the NF-A12x25 stacks up against the NF-F12 and NF-S12A in airflow, pressure, and real-world performance.
NF-A12x25: interview with Lars Strömbäck (Noctua CTO)
The NF-A12x25 took over four years to develop, pushing Noctua’s R&D to new heights. Noctua’s CTO shares the innovations that make it a breakthrough in fan design.
Sterrox® liquid-crystal polymer (LCP)
Sterrox® LCP minimizes impeller creep, dampens vibrations, and improves acoustic performance, making Noctua fans quieter and more efficient.
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