Power supply mode: direct current
Voltage: as shown
Products include: 1pc DC motor

Brand new original Japanese Nidec supercharged cooling fan, specification 40*40*56 MM, is composed of two small fans, A fan is DC12V 1.32A, B fan is DC12V 1.91 A, don’t It seems that it is small, but powerful. It is supplied by the small fan in the front, and the small fan in the back is pressurized again. With high air volume and high wind power, the front fan has reached 19200 rpm, and the rear booster fan has a speed of 17,400. The speed of the fan is super high. The speed of the B fan has reached more than 23,000 rpm. The wind sound of the whole fan at full speed is like a whistling north wind. Just listening to this sound will know that this small fan is really powerful.

There are two ways to power on this fan:

1. For simple operation, connect the red wire directly to the positive pole of the power supply and the black wire to the negative pole of the power supply. When DC12V, the fan runs at the highest speed. The front fan of the A fan is 19200 rpm, the rear fan is 17400 rpm, and the B fan The speed has reached more than 23,000 revolutions, so that the voltage can be adjusted to adjust the speed. This batch of wind has the protection of reverse connection of positive and negative electrodes.

2. If you need to use PWM to adjust the speed, connect the PWM signal wire to the blue wire. The ground wire of PWM should also be connected to the negative pole of the power supply (black wire). The positive pole of the power supply is still connected to the red wire. The pulse frequency needs to be 500HZ. Above, then adjust the duty cycle to adjust the fan speed (20%-99% adjustable).

A fan is more energy-efficient than B fan, but B fan is more powerful than A fan