What are the technical characteristics of heat dissipation fans? Below is a small edition of Yijia Electronics to explain for you:

System impedance: The density of parts and the shape of flow path in the installation equipment of axial fan impede the air flow, thus causing pressure loss. Resistance to the air flow.

Thermal protection: In order to prevent the motor from burning out when it is closed, the thermal element is cut off before the motor temperature rises to the burning temperature.

Impedance protection: In order to prevent the motor from burning out when it is closed, this method sets the impedance (AC resistance) of the motor winding to keep the motor temperature rising below the burning temperature.

Maximum air volume: Qmax (m3/min)

In the wind measurement device, when the static pressure is adjusted to 0 Pa, the fan's exhaust air volume.

Maximum static pressure: Psmax. (Pa)

When the air volume is adjusted to 0 m3/min, the differential pressure between the internal pressure and the external pressure of the device is obtained. That is, the front pressure when the fan is fully sealed in front of it.