Scythe "S-FLEX™" S-FDB 120mm Quiet FAN SFF21E
Introducing the high quality quiet 12cm fan with patent pending FDB (Fluid Dynamic Bearing) technology. This "Fluid Dynamic Bearing" technology from
SONY Corporation can provide a dramatic reduction in fan noise and prolong the life of your fan. Click on the image of the product to find out more info!
Model # Dimensions Fan Speed Fan Noise Air Flow Rated Current
SFF21E 120x120x25mm 1,200rpm 20 dBA 49.0CFM 0.15A
Connector: 3-pin (4-pin adaptor included)
Cable Length: 30cm
Bearing Type: S-FDB (Fluid Dynamic Bearing by SONY Corporation)
MTBF: 150,000 hours
* 150,000 hours of MTBF is measured under the 25C (77F) ambient temperature.
* MTBF of normal ball bearing Fan: 50,000 hours
* MTBF of normal sleeve bearing Fan: 20,000 hours
The following environment factors are advised for S-FLEX™ Quiet Fan.
Operating Temperature: -10C ~ 70C (14F ~ 158F)
Storing Temperature: -25C ~ 70C (-13F ~ 158F)
Avoid extreme humid environment and non condensing environment.
* S-FLEX™ is registered trademark of SONY Corp.
Equipped with Genuine S-FDB* Bearing
This fan is equipped with genuine S-FDB (SONY Fluid Dynamic Bearing) made by SONY corporation.
Market Leading Low-Noise Level
S-FDB technology drastically eliminates the friction between the bearing and the shaft which makes this fan nearly inaudible to human ears. Additional
suction magnet optimizes the magnetic force balance within the rotor to achieve absolute silence. To even further achieve the absolute silence, the fan is
equipped with the Linear drive IC for reducing electromagnetic noise.
Outstanding Long Life of 150,00 Hours
Patent Pending "S-FDB" structure allows the fan to last up to 150,000 hours.
Conventional ball bearing carries a point contacting structure for rotation. This gives a point supporting situations and dropping impact which can damage
the ball bearing surface leading to irregular noise. The S-FDB carries a surface contact mechanism for improved anti-shock structure, which is 5 times
stronger than the conventional ball bearing.