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LWFD5025KD-05 product photo
LWFD5025KD-05 product photo
LWFD5025ML-04 product photo
  • Frame size50 mm2.0 in
  • Max airflow7.2 m³/h4 CFM
  • Max static pressure56 Pa0.22 in. wg
  • Voltage5 V
  • Speed3,500 rpm
  • Input power1 W
  • Noise28 dB(A)

LWFD5025KD-05 DC Centrifugal Blower 50 mm

50 mm | DC | Max airflow 7.2 m³/h | Max static pressure 56 Pa | 28 dB(A)

SKU: LWFD5025KD-05 Categories: , ,
  • Factory direct
  • OEM / ODM
  • Samples in 1–3 days
  • Production 15–30 days
  • 18-month warranty
  • CE · ETL · RoHS
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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.

Dimensional drawingDimensions in mm. Confirm against the final approval drawing before machining cut-outs.
LWFD5025KD-05 Dimensional drawing
Performance curve (P-Q)Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.
LWFD5025KD-05 Performance curve (P-Q)

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

LWFD5025KD-05 is a LONGWELL DC Centrifugal Blower from the DC Centrifugal Blowers range, frame size 50 mm, rated 5 V DC, maximum airflow 7.2 m³/h, maximum static pressure 56 Pa, noise 28 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 LWFD5025KD-05
Series LWFD5025
Motor type DC
Rated voltage 5 V
Current 0.2 A
Input power 1 W
Speed 3,500 rpm
Max. airflow 7.2 m³/h
Max. static pressure 56 Pa
Noise 28 dB(A)
Frame size 50 mm
Dimensions 50x25mm
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 LWFD5025: 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.

ModelMax airflowMax static pressureSpeedPowerNoiseVoltage
LWFD5025KD-05 this model 7.2 m³/h56 Pa 3,500 rpm1 W28 dB(A)5 V
LWCD-50150MN-07 88 m³/h38 Pa 2,000 rpm2.4 W37 dB(A)24 V View
LWCD-50190MN-07 110 m³/h36 Pa 2,000 rpm3.36 W38 dB(A)24 V View
LWCD-50190LN-06 110 m³/h36 Pa 2,000 rpm3.36 W38 dB(A)12 V View
LWCD-50250MN-07 139 m³/h34 Pa 2,000 rpm4.32 W39 dB(A)24 V View
LWCD-50250LN-06 139 m³/h34 Pa 2,000 rpm4.32 W39 dB(A)12 V View
LWCD-50290MN-07 161 m³/h30 Pa 2,000 rpm5.28 W40 dB(A)24 V View
LWCD-50290LN-06 161 m³/h30 Pa 2,000 rpm5.28 W40 dB(A)12 V View
LWCD-50350MN-07 198 m³/h26 Pa 2,000 rpm6.24 W41 dB(A)24 V View
LWCD-50350LN-06 198 m³/h26 Pa 2,000 rpm6.24 W41 dB(A)12 V View
LWCD-50420MN-07 232 m³/h20 Pa 2,000 rpm7.2 W42 dB(A)24 V View
LWCD-50420LN-06 232 m³/h20 Pa 2,000 rpm7.2 W42 dB(A)12 V View
LWCD-50530MN-06 288 m³/h21 Pa 2,000 rpm7.92 W43 dB(A)24 V View
LWCD-50610MN-06 332 m³/h19 Pa 2,000 rpm8.88 W42 dB(A)24 V View
LWCD-50700MN-06 381 m³/h20 Pa 2,000 rpm9.84 W43 dB(A)24 V View

Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.

Related products

Other models in the LWFD5025 seriesSame impeller, different speed grade or wiring

LWFD5025KX-01 product photoLWFD5025KX-0150 mm · 10.8 m³/h · 128 Pa · DCsame seriesLWFD5025KH-02 product photoLWFD5025KH-0250 mm · 10.2 m³/h · 114 Pa · DCsame seriesLWFD5025KM-03 product photoLWFD5025KM-0350 mm · 9 m³/h · 93 Pa · DCsame seriesLWFD5025KL-04 product photoLWFD5025KL-0450 mm · 8.4 m³/h · 73 Pa · DCsame seriesLWFD5025LX-01 product photoLWFD5025LX-0150 mm · 10.8 m³/h · 128 Pa · DCsame seriesLWFD5025LH-02 product photoLWFD5025LH-0250 mm · 10.2 m³/h · 114 Pa · DCsame series

Adjacent sizesOne size up when airflow is short, one size down when it is too much

Impeller Ø43–49 mmLWT-2250-0249 mm · 4,800 m³/h · 2,200 Pa · ACadjacent sizeLWT-2250-01 product photoLWT-2250-0149 mm · 4,800 m³/h · 2,200 Pa · ACadjacent sizeLWT-1125-02 product photoLWT-1125-0249 mm · 4,100 m³/h · 1,700 Pa · ACadjacent sizeLWT-1500-02 product photoLWT-1500-0249 mm · 4,300 m³/h · 1,900 Pa · ACadjacent sizeLWT-1500-01 product photoLWT-1500-0149 mm · 4,300 m³/h · 1,900 Pa · ACadjacent sizeLWT-1125-01 product photoLWT-1125-0149 mm · 4,100 m³/h · 1,700 Pa · ACadjacent size

Alternatives at a similar dutySimilar airflow, different construction or motor platform

LWFD6015MX-01 product photoLWFD6015MX-0160 mm · 7.2 m³/h · 109 Pa · DCsimilar dutyLWFD6015KX-01 product photoLWFD6015KX-0160 mm · 7.2 m³/h · 109 Pa · DCsimilar dutyLWFD5025MD-05 product photoLWFD5025MD-0550 mm · 7.2 m³/h · 56 Pa · DCsimilar dutyLWFD5025LD-05 product photoLWFD5025LD-0550 mm · 7.2 m³/h · 56 Pa · DCsimilar dutyLWFD5020MD-05 product photoLWFD5020MD-0550 mm · 7.2 m³/h · 86 Pa · DCsimilar dutyLWFD6015LX-01 product photoLWFD6015LX-0160 mm · 7.2 m³/h · 109 Pa · DCsimilar duty

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