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Square 30mm ultra-thin blower fan black plastic housing two wires

SXDOOL

SXDOOL UB5U3-700 30mm blower fan 5V 9500 RPM

SKU CH-AB8E-6DPRW

Ultra-thin 30 mm blower fan delivers 0.630 CFM at 9500 RPM from a 5 V supply

  • Fan Size30mm
  • Ultra-thin 3 mm profile fits tight spaces
  • 5 V power with 0.36 W draw for USB operation
  • Vapo bearing rated for 9500 RPM blower speed
  • IP55 dust and water resistance for harsh environments
  • Tachometer output enables real-time speed monitoring

30mm blower fan for tight spaces

The SXDOOL UB5U3-700 is a 30mm square blower fan just 3.00mm wide. It runs on 5VDC and spins at 9500 RPM, delivering 0.630 CFM airflow with 0.354 inch water column static pressure. The Vapo-Bearing and IP55 rating suit compact devices that need directed cooling in dust-prone environments.

Thermals, noise and power draw

At full speed the fan draws 0.36W and produces 39.2 dB(A) noise. Operating temperature range spans 14 to 158 °F (-10 to 70 °C). The 2-wire connection includes a speed sensor for monitoring, while the blower design pushes air through restrictive channels more effectively than axial fans of similar size.

Upgrade path and fit

This unit replaces 30mm axial fans where static pressure is insufficient for heatsink fins or tight ducting. The 2.27g weight and ultra-thin profile fit single-board computers, slim routers and industrial enclosures. It is not for builds needing higher airflow volume, PWM control or larger mounting footprints.

Highlights

  • Ultra-thin 3 mm profile fits tight spaces
  • 5 V power with 0.36 W draw for USB operation
  • Vapo bearing rated for 9500 RPM blower speed
  • IP55 dust and water resistance for harsh environments
  • Tachometer output enables real-time speed monitoring

Specifications

Fan Size30mm

Questions about this item

How do I connect the 2-wire 5V leads to a motherboard header without a tachometer pin?

Plug the red and black leads onto the 5 V and ground pins of a 3-pin or 4-pin header; the third pin stays empty because the speed sensor uses the same two wires.

When will the Vapo bearing need replacement under continuous 9500 RPM operation?

Vapo bearings are sealed and rated for the fan's full operating temperature range of -10 °C to 70 °C; no user lubrication or scheduled swap is required.

At what temperature does the IP55-rated motor hit its thermal limit during sustained load?

The motor is specified to 70 °C (158 °F); sustained operation above that temperature exceeds the rated limit.

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