UF3H3-710 Ultra-Thin 5V/3.3V Cooling Fan — 17×17×3mm

Need serious airflow in a seriously tiny package? The UF3H3-710 ultra-thin cooling fan delivers impressive large-volume airflow from a remarkably compact 17×17×3mm form factor. Whether you're building a custom DIY electronics project, cooling a Raspberry Pi, or managing heat in a slim embedded device, this micro fan punches well above its size.

Key Features

Ultra-Compact Design: Only 17mm × 17mm × 3mm — fits in the tightest enclosures and PCB layouts where standard fans simply won't.
Wide Voltage Range: Operates on DC 3V–5V, making it compatible with 3.3V and 5V power rails straight from a microcontroller, USB port, or single-cell Li-ion circuit.
High-Speed Rotation: Spins at 18,000–30,000 RPM for powerful, consistent airflow despite its miniature size.
Low Power Consumption: Draws just 80mA at 5V (0.4W total) — efficient enough for battery-powered and USB-powered builds.
USB-Compatible Voltage: Rated at DC 5V, ideal for powering directly from a USB 5V supply or development board output pin.
Reliable Construction: Engineered for steady continuous operation in embedded systems, DIY electronics, and compact computing builds.

Technical Specifications

Model Number	UF3H3-710
Dimensions	17 × 17 × 3 mm
Rated Voltage	DC 5V
Voltage Range	DC 3V – 5V
Working Current	80 mA
Power Consumption	0.4 W
Fan Speed	18,000 – 30,000 RPM
Package Contents	1 × Cooling Fan
Country of Origin	Made in Mainland China

Perfect For

Raspberry Pi, Arduino, and single-board computer cooling
DIY electronics enclosures and PCB thermal management
Slim embedded systems, IoT devices, and mini PCs
3D printer hot-end or electronics bay cooling
Custom wearable tech or compact robotics builds

Related Products You May Like

For general guidance on electronics thermal management and component safety, visit the U.S. Consumer Product Safety Commission (CPSC).

Learn more: Fan (machine)

Frequently Asked Questions

Q: What voltage does the UF3H3-710 ultra-thin cooling fan support?

A: The fan operates across a DC 3V–5V voltage range, with a rated voltage of DC 5V. This makes it fully compatible with standard 3.3V microcontroller GPIO outputs and 5V USB power supplies, giving you flexibility across most DIY and embedded electronics builds.

Q: How small is this mini cooling fan and where can it be used?

A: The fan measures just 17mm × 17mm × 3mm — roughly the size of a large coin. Its ultra-thin profile makes it ideal for use in tight enclosures such as Raspberry Pi cases, slim embedded systems, IoT device housings, 3D printers, and any custom electronics project where space is at a premium.

Q: How fast does the UF3H3-710 fan spin and how much airflow does it produce?

A: Despite its compact size, this fan reaches speeds of 18,000–30,000 RPM, generating surprisingly large airflow relative to its dimensions. This high-speed rotation ensures effective heat dissipation for small but heat-sensitive electronic components.

Q: Is the UF3H3-710 cooling fan compatible with USB power?

A: Yes. The fan's 5V rated voltage is directly compatible with standard USB 5V power output. You can power it from a USB port, USB hub, or any 5V USB charger by connecting appropriately to its leads — no additional voltage regulation is needed at 5V.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.