Frame size40 mm1.6 in
Max airflow2.4 m³/h1 CFM
Max static pressure23 Pa0.09 in. wg
Voltage5 V
Speed5,000 rpm
Input power1 W
Noise21.1 dB(A)

LWFD4010KD-05 DC Centrifugal Blower 40 mm

40 mm | DC | Max airflow 2.4 m³/h | Max static pressure 23 Pa | 21.1 dB(A)

SKU: LWFD4010KD-05 Categories: Cooling Fans & Blowers, DC Centrifugal Blowers, Frame Ø40–60 mm

Factory direct
OEM / ODM
Samples in 1–3 days
Production 15–30 days
18-month warranty
CE · ETL · RoHS

Get a quote · LWFD4010KD-05

Price, curve check and lead time within 1 business day.

Used only for this quotation and technical support.

WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com All files for LWFD4010KD-05drawings · curves · datasheet

Samples 1–3 days · fee credited to your order
From ~30 pcs for a first validation order
T/T 30 / 70 · FOB / CIF / DDP
100% tested · 18-month warranty
How ordering works →

Required airflow Required static pressure

Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade. The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.

LWFD4010KD-05 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFD4010KD-05 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Need a non-standard size or another format? Ask an engineer or search the download center.

LWFD4010KD-05 is a LONGWELL DC Centrifugal Blower from the DC Centrifugal Blowers range, frame size 40 mm, rated 5 V DC, maximum airflow 2.4 m³/h, maximum static pressure 23 Pa, noise 21.1 dB(A), input power 1 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWFD4010KD-05
Series	LWFD4010
Motor type	DC
Rated voltage	5 V
Current	0.2 A
Input power	1 W
Speed	5,000 rpm
Max. airflow	2.4 m³/h
Max. static pressure	23 Pa
Noise	21.1 dB(A)
Frame size	40 mm
Dimensions	40x10mm
Impeller material	Plastic(UL94-VO)

Typical applications

Power supplies and inverters
Telecom and server cabinets
Battery packs and EV chargers
Medical and laboratory equipment

Series LWFD4010: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.

Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.

Alternatives with the same frame size (40 mm · DC)

Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.

Model	Max airflow	Max static pressure	Speed	Power	Noise	Voltage
LWFD4010KD-05 this model	2.4 m³/h	23 Pa	5,000 rpm	1 W	21.1 dB(A)	5 V
LWFD4010MD-05	2.4 m³/h	23 Pa	5,000 rpm	0.96 W	22.4 dB(A)	24 V	View
LWFD4010LD-05	2.4 m³/h	23 Pa	5,000 rpm	0.96 W	22.4 dB(A)	12 V	View
LWFD4010ML-04	3 m³/h	33 Pa	6,000 rpm	1.2 W	26.4 dB(A)	24 V	View
LWFD4010LL-04	3 m³/h	33 Pa	6,000 rpm	1.2 W	26.4 dB(A)	12 V	View
LWFD4010KL-04	3 m³/h	33 Pa	6,000 rpm	1.25 W	25.1 dB(A)	5 V	View
LWFD4010MM-03	3.6 m³/h	44 Pa	7,000 rpm	1.44 W	29.7 dB(A)	24 V	View
LWFD4010LM-03	3.6 m³/h	44 Pa	7,000 rpm	1.44 W	29.7 dB(A)	12 V	View
LWFD4010KM-03	3.6 m³/h	44 Pa	7,000 rpm	1.5 W	28.4 dB(A)	5 V	View
LWFD4010MH-02	4.2 m³/h	58 Pa	8,000 rpm	1.92 W	32.6 dB(A)	24 V	View
LWFD4010LH-02	4.2 m³/h	58 Pa	8,000 rpm	1.68 W	32.6 dB(A)	12 V	View
LWFD4010KH-02	4.2 m³/h	58 Pa	8,000 rpm	1.75 W	31.3 dB(A)	5 V	View
LWFD4010MX-01	4.8 m³/h	73 Pa	9,000 rpm	2.4 W	35.2 dB(A)	24 V	View
LWFD4010LX-01	4.8 m³/h	73 Pa	9,000 rpm	1.92 W	35.2 dB(A)	12 V	View
LWFD4010KX-01	4.8 m³/h	73 Pa	9,000 rpm	2 W	33.9 dB(A)	5 V	View