DC 5V 2510 Small Cooling Fan Hydraulic Bearing - 25 x 25 x 10 mm

Specifications

• Operating Voltage: 5V DC
• Dimensions: 25mm x 25mm x 10mm (L x W x H)
• Bearing Type: Hydraulic Bearing (Low noise, high lifespan)
• Connector: 2-Pin Connector (Pre-crimped)
• Current Draw: ~0.05A to 0.1A (Ultra-low power consumption)
• Acoustic Noise: Ultra-quiet operation suitable for desktop environments
• Wire Length: Approx. 15cm - 20cm

Applications

• Single Board Computers: Perfect for active cooling on Raspberry Pi 3/4/5, Orange Pi, and Jetson Nano enclosures.
• 3D Printing: Ideal for custom hotend mounts (like the E3D V6) or cooling secondary extruder stepper motors.
• Custom Robotics: Keeping motor drivers (like L298N or A4988) cool inside tight robot chassis.
• Miniature Electronics: Ventilation for custom 3D printed cases, IoT sensor nodes, and DIY battery banks.

Features:

• Comes with two red and black wires attached
• Lightweight and Durable
• So small in size
• 5V DC power supply
• It can withstand high room temperature.

Frequently Asked Questions (FAQ)

• What is the exact size of this fan?
  It measures 25mm in length, 25mm in width, and 10mm in thickness.
• What makes a hydraulic bearing better than a sleeve bearing?
  Hydraulic bearings retain lubrication internally, running quieter and lasting up to 30,000+ hours compared to the shorter lifespan of cheap sleeve bearings.
• Can I run this fan on 3.3V?
  Yes, it will spin at 3.3V, but the RPM and airflow will be significantly reduced. 5V is recommended for optimal cooling.
• Can I use this on a 12V or 24V 3D printer?
  No, applying 12V or 24V will destroy the fan. You must use a step-down buck converter to drop the voltage to 5V.
• Does this fan support PWM speed control?
  This is a 2-wire fan, meaning it does not have a dedicated PWM pin. However, you can control its speed using a MOSFET and PWM signal from your microcontroller on the power line.
• Will this fit a standard Raspberry Pi case?
  Many aftermarket and 3D printed Raspberry Pi cases use 3010 (30mm) fans, but several compact cases specifically require this 2510 (25mm) size. Check your case dimensions.
• Is this fan waterproof?
  No, this fan is designed for indoor, dry environments. Exposing it to water will short the internal coils.
• What screws do I need to mount this?
  Typically, M2.5 or M3 machine screws are used depending on the mounting holes of your specific bracket or heatsink.
• Which wire is positive and which is negative?
  The Red wire is positive (5V VCC), and the Black wire is negative (Ground/GND).

•  How loud is this fan?
  Thanks to the hydraulic bearing, it is exceptionally quiet, usually measuring under 20-25 dBA, making it perfect for desktop use.