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Tiny square plastic blower fan 15mm across with three-pin connector

SXDOOL

SXDOOL 1503 5V 3V 1.5cm Micro Mini Ultra-Thin USB Mini Blower

SKU CH-NA33-AXJKX

Ultra-thin 1.5 cm USB blower delivers 0.170 CFM airflow at 13800 RPM with rotor-lock protection and speed sensor

  • Ultra-thin 1.5 cm profile fits ultra-compact builds
  • 5 V and 3 V input options suit diverse USB power sources
  • 13 800 RPM blower delivers 0.170 CFM for targeted airflow
  • Rotor locking protection and speed sensor add operational safety
  • Rated 30 000 hours at 40 °C for long service life

Micro blower for tight spaces

This 15 mm square fan measures just 3.5 mm thick and weighs 1.36 g, making it suited for compact enclosures or portable rigs where larger coolers will not fit. It runs on 5 V or 3 V USB power and delivers 0.170 CFM at 13,800 RPM. The blower design directs air through a focused outlet rather than across a broad surface.

Practical limits of the USB interface

Rated current is 0.050 A with a voltage range of 2 to 3.5 VDC, so it draws only 150 mW from a standard USB port. Noise sits at 30.0 dB(A) and static pressure reaches 0.154 inches of water column (38.4 Pa), which is modest compared with full-size case fans. Operating temperature spans 14 to 140 F (-10 to 60 C) and service life is rated 30,000 hours at 40 C.

Plastic frame with three-pin connector

Both frame and blades are plastic, keeping weight to 0.003 lbs while the rectangular three-position connector provides power, ground and a speed sensor signal. Rotor locking protection stops the motor if the blade is obstructed. The ultra-thin profile allows mounting in 1.5 cm gaps, but the low airflow means it cannot replace a primary case fan in high-heat builds.

Highlights

  • Ultra-thin 1.5 cm profile fits ultra-compact builds
  • 5 V and 3 V input options suit diverse USB power sources
  • 13 800 RPM blower delivers 0.170 CFM for targeted airflow
  • Rotor locking protection and speed sensor add operational safety
  • Rated 30 000 hours at 40 °C for long service life

Specifications

BrandXCLIO

Questions about this item

Should I pick the 3 V or 5 V version of this 1503 micro blower?

The unit is rated for 2 to 3.5 VDC, so the 3 V option matches its operating range.

What does the 0.170 CFM airflow figure mean once the fan is installed?

It delivers 0.170 CFM (0.005 m³/min) of air movement through a 15 mm square frame at 13800 RPM.

How does the 3-position rectangular connector limit what I can plug it into?

The 3-pin rectangular termination provides power, ground and a speed sensor signal; it requires a matching header or adapter.

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