Frame size50 mm2.0 in
Max airflow27 m³/h16 CFM
Max static pressure44 Pa0.18 in. wg
Voltage5 V
Speed5,000 rpm
Input power1.75 W
Noise32.9 dB(A)

LWAD5020KL-04 DC Axial Cooling Fan 50 mm

50 mm | DC | Max airflow 27 m³/h | Max static pressure 44 Pa | 32.9 dB(A)

SKU: LWAD5020KL-04 Categories: Cooling Fans & Blowers, DC Axial Cooling Fans, Frame 50–70 mm

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Samples in 1–3 days
Production 15–30 days
18-month warranty
CE · RoHS · ETL on request

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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com All files for LWAD5020KL-04drawings · 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
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Drawings & downloads
Technical description

LWAD5020KL-04 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWAD5020KL-04 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.

LWAD5020KL-04 is a LONGWELL DC Axial Cooling Fan from the DC Axial Cooling Fans range, frame size 50 mm, rated 5 V DC, maximum airflow 27 m³/h, maximum static pressure 44 Pa, noise 32.9 dB(A), input power 1.75 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWAD5020KL-04
Series	LWAD5020
Motor type	DC
Rated voltage	5 V
Current	0.35 A
Input power	1.75 W
Speed	5,000 rpm
Max. airflow	27 m³/h
Max. static pressure	44 Pa
Noise	32.9 dB(A)
Frame size	50 mm
Dimensions	50x20mm
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 LWAD5020: 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 (50 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
LWAD5020KL-04 this model	27 m³/h	44 Pa	5,000 rpm	1.75 W	32.9 dB(A)	5 V
LWFD5025MD-05	7.2 m³/h	56 Pa	3,500 rpm	1.44 W	28 dB(A)	24 V	View
LWFD5025LD-05	7.2 m³/h	56 Pa	3,500 rpm	1.2 W	28 dB(A)	12 V	View
LWFD5025KD-05	7.2 m³/h	56 Pa	3,500 rpm	1 W	28 dB(A)	5 V	View
LWFD5025ML-04	8.4 m³/h	73 Pa	4,000 rpm	1.92 W	30.9 dB(A)	24 V	View
LWFD5025LL-04	8.4 m³/h	73 Pa	4,000 rpm	1.44 W	30.9 dB(A)	12 V	View
LWFD5025KL-04	8.4 m³/h	73 Pa	4,000 rpm	1.25 W	30.9 dB(A)	5 V	View
LWFD5025MM-03	9 m³/h	93 Pa	4,500 rpm	2.4 W	33.4 dB(A)	24 V	View
LWFD5025LM-03	9 m³/h	93 Pa	4,500 rpm	1.8 W	33.4 dB(A)	12 V	View
LWFD5025KM-03	9 m³/h	93 Pa	4,500 rpm	1.5 W	33.4 dB(A)	5 V	View
LWFD5025MH-02	10.2 m³/h	114 Pa	5,000 rpm	2.88 W	35.7 dB(A)	24 V	View
LWFD5025LH-02	10.2 m³/h	114 Pa	5,000 rpm	2.4 W	35.7 dB(A)	12 V	View
LWFD5025KH-02	10.2 m³/h	114 Pa	5,000 rpm	2 W	35.7 dB(A)	5 V	View
LWFD5025MX-01	10.8 m³/h	128 Pa	5,300 rpm	4.32 W	37 dB(A)	24 V	View
LWFD5025LX-01	10.8 m³/h	128 Pa	5,300 rpm	3 W	37 dB(A)	12 V	View