Blower Fan 40*40*20mm China Manufacturers - - Shenzhen Zhiqiangxing Technology Co., Ltd

Blower Fan 404020mm

Blower Fan 40*40*20mmCompact in size, it is suitable for devices with limited space. Its fan blade design is unique, which can effectively generate strong wind pressure and quickly guide the airflow. It can efficiently dissipate heat in a narrow space, such as when used in mini PCS, projectors and other devices, ensuring that the devices maintain a relatively low temperature during operation.General SpecificationsMotorDC Brushless motorFrame MaterialPlastic(UL94V-0)Impeller MaterialPlastic(UL94V...

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Blower fan 40*40*20mm

Compact in size, it is suitable for devices with limited space. Its fan blade design is unique, which can effectively generate strong wind pressure and quickly guide the airflow. It can efficiently dissipate heat in a narrow space, such as when used in mini PCS, projectors and other devices, ensuring that the devices maintain a relatively low temperature during operation.

General Specifications

Motor	DC Brushless motor
Frame Material	Plastic(UL94V-0)
Impeller Material	Plastic(UL94V-0)
Function	PWM/FG/RD optional
Temp.Range	-20℃~70℃
Protection	IP20,Max.IP68
Expected Life	70000hrs/40℃
SafetyAppro	CE

Dimensions Drawing

Performance Curve

Specifications

Listed Model	Rated Voltage	Operation Voltage	Rated Current	Rated Speed	Air Flow	Air Pressure	Noise Level	Weight
Listed Model	VDC	VDC	A	RPM	CFM	mmH₂O	dBA	9
QB4020H5B	5	4.0-5.7	0.20	6000	4.1	8.5	34	22
QB4020M5B		4.0-5.7	0.15	5000	3.4	6.6	28
QB4020L5B		4.0-5.7	0.10	4000	2.9	4.9	25
QB4020H1B	12	7.0-13.8	0.12	6000	4.1	8.5	34
QB4020M1B		7.0-13.8	0.06	5000	3.4	6.6	28
QB4020L1B		7.0-13.8	0.05	4000	2.9	4.9	25
QB4020H2B	24	14.0-27.6	0.08	6000	4.1	8.5	34
QB4020M2B		14.0-27.6	0.05	5000	3.4	6.6	28
QB4020L2B		14.0-27.6	0.03	4000	2.9	4.9	25