9G1212A4021 SANYO DENKI - SANACE FANS, 9G1212A4021 Datasheet - Page 30

• Manufacturer Part Number: 9G1212A4021
• Description: AXIAL FAN, 120MM, 12VDC, 400mA
• Manufacturer: SANYO DENKI - SANACE FANS

Specifications of 9G1212A4021

• External Height: 120mm
• External Width: 120mm
• External Depth: 25mm
• Current Type: DC
• Supply Voltage: 12VDC
• Flow Rate: 100CFM
• Noise Rating: 44dBA
• Power Connection Type: Lead Wires
• Bearing Type: Ball
• Flow Rate - Imperial: 100CFM
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Product Guide
■ PWM Speed Control Scheme
28
Fans with the PWM control function
This picture shows 120×120×38mm fan.
Duty cycle＝100%
Duty cycle＝50%
Duty cycle＝20%
5V
0V
5V
0V
5V
0V
Pulse Width Modulation Speed Control
Features
PWM speed control is the feature that fan speed is externally
controlled by a constant input frequency with a varying duty
cycle. It is good for efficient cooling, power saving and noise
reduction for system because fan speed is appropriately
adjusted when needed.
Fan speed
Full speed（6000min
66% speed（4000min
25% speed（1500min
-1
-1
-1
）
）of Full speed
）of Full speed