NF-A12x25r PWM
Size:120x120x25 mm
Mounting hole spacing: 93x83 mm
Connector & pin-configuration :4-pin PWM
Cable length :20cm + 30cm NA-EC1 extension cable
Bearing :SSO2
Blade geometry :A-Series with Flow Acceleration Channels
Frame technology: AAO (Advanced Acoustic Optimisation)
Material: Sterrox LCP
Rotational speed (+/- 10%) :2000 RPM
Rotational speed with L.N.A. (+/- 10%) :1700 RPM
Min. rotational speed @ 20% PWM (+/-20%) :450 RPM
Airflow: 102.1 m⊃3;/h
Airflow with L.N.A.: 84,5 m⊃3;/h
Acoustical noise :22.6 dB(A)
Acoustical noise with L.N.A. :18.8 dB(A)
Static pressure :2.34 mm H₂O
Static pressure with L.N.A. :1.65 mm H₂O
Max. input power :1.68 W
Max. input current 0.14 A
Operating voltage: 12 V
Voltage PWM signal :5 V
MTTF :> 150.000 h
Flow Acceleration Channels
The NF-A12x25 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise.
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.