9G1212G1021 SANYO DENKI - SANACE FANS, 9G1212G1021 Datasheet - Page 8

• Manufacturer Part Number: 9G1212G1021
• Description: AXIAL FAN, 120MM, 12VDC, 980mA
• Manufacturer: SANYO DENKI - SANACE FANS

Specifications of 9G1212G1021

• External Height: 120mm
• External Width: 120mm
• External Depth: 38mm
• Current Type: DC
• Supply Voltage: 12VDC
• Flow Rate: 137CFM
• Noise Rating: 49dBA
• Power Connection Type: Lead Wires
• Bearing Type: Ball
• Flow Rate - Imperial: 137CFM
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TECHNICAL MATERIAL
［×10
Characteristics calculation method
and description
A fan motor generally cools itself as well. The temperature rise
of the motor is relatively low and the temperature rise of the
grease in the bearings is also low, so expected life is longer
than general some either motors. Since the service life of bear-
ings is a theoretical value that applies when they are ideally
lubricated, the life of lubricant can be regarded as expected life
of the fan. The expected life of an AC fan used at an ambient
temperature 60℃ is 25,000 hours. The BLDC fan consumes less
power and its temperature rise of bearing is very low, thus its
expected life is 40,000 hours at an ambient temperature of
60℃. Sanyo Denki also has a line-up of Long Life Fans that has
Expected life of DC fans
Expected life of AC fans
6
Life expectancy
1000000
10
Reliability and life
100000
5
2
1
10000
4
1000
］
（H）
Expected life 40000h(L10, 60
Expected life 60000h(L10, 60
20
20
Rated voltage, continuous operation, free air, survival rate of 90%
Rated voltage, continuous running, free air, survival rate of 90%
℃
40
℃
)
)
40
60
60
80
80
Expected life 100000h （ L10, 60
Expected life 200000ｈ ( L10, 60
200,000 hours life and 100,000 hours life at an ambient temper-
ature 60℃ with an even more enhanced structure and material.
The table below indicates the relationship between ambient
temperature and expected life estimated on the basis of our life
tests and same other tests conducted by Sanyo Denki. (The sur-
vival rate is 90%.) An accelerated life test is conducted on the
basis of the concept that the expected life halves as the ambi-
ent temperature rises by about 15℃ (within the operating tem-
perature range of lubricant.)
100
100
Ambient temperature （ ℃）
Ambient temperature
℃
℃
)
)
（℃）