Link: Nidec DF251R / F251R Datasheet

Features:

• Description: Rotary Axial Flow Muffin Cooling Fan 25x25x10mm Nidec DF251R-05LLC F251R Series DC5V 0.06A Brushless DC Fan 2.00-Pitch 2-Pin 2-Wire Connector 8-inch SKU# 120928A
• Manufacturer: Nidec Copal Electronics, Inc.
• Brand or Distributor: Nidec
• Model:
  • DF251R-05LLC
  • F251R Series
• Brief Spec.:
  • Size: 25x25x10mm
  • Power Rating: DC5V 0.06A (DC4.2~5.7V)
  • Brushless DC FAN
  • Sleeve Bearing
  • Frame & Impeller: ABS / PBT Alloy
  • Net Weight: 7g
  • RPM: 6500 Min.
  • Air Flow: 0.4 m³/min
  • Static Pressure: 30 Pa
  • Noise Level: 20 dBA
• Connector: 2.54-Pitch 2-Pin 2-Wire Connector
• Wire Length: 8 inch
• Weight: 0.3 oz (Estimated Shipping Weight 3 oz)
• Condition: Used, may have signs of cosmetic wear.
• Package: Non-Retail Packaging, in Unprinted Reused Box or Plastic Bag
• For use with or pulled from: (for reference only)