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DC Brushless Fans (BLDC)

Image Part Number Description / PDF Quantity Rfq
9GA0624P6G001

9GA0624P6G001

Sanyo Denki

FAN 60X20MM 24VDC TACH,PWM

762
9HV1248P1G001

9HV1248P1G001

Sanyo Denki

FAN 120X38MM 48VDC VANE TACH,PWM

402
9GV2048P0G201

9GV2048P0G201

Sanyo Denki

FAN 200X70MM 48VDC VANE RBLS

26
9LG0924P4S001

9LG0924P4S001

Sanyo Denki

FAN 92X25MM 24VDC RBLS TACH,PWM

0
9GV0948P1F03

9GV0948P1F03

Sanyo Denki

DC AXIAL FAN 92X92X38MM PWM

0
9CRD0412P5H03

9CRD0412P5H03

Sanyo Denki

FAN 40X56MM 12VDC TACH,PWM

948
9GV1412P1H001

9GV1412P1H001

Sanyo Denki

DC AXIAL FAN 140X140X38MM PWM

1
9WF0624H7D01

9WF0624H7D01

Sanyo Denki

FAN 60X15MM 24VDC OIL PROOF LOCK

0
9BFB12P2H003

9BFB12P2H003

Sanyo Denki

BLOWER 120X32MM 12VDC TACH,PWM

137
9G1212E101

9G1212E101

Sanyo Denki

FAN 120X38MM 12VDC TACH

47
9CR0812H801

9CR0812H801

Sanyo Denki

FAN 80X80MM 12VDC DUAL TACH

6
9WV0848P1H001

9WV0848P1H001

Sanyo Denki

FAN 80X38MM 48VDC SPLASH PROOF

0
9GV0824P4K011

9GV0824P4K011

Sanyo Denki

FAN 80X25MM 24VDC VANE RBLS

252
9G1224M4011

9G1224M4011

Sanyo Denki

FAN 120X25MM 24VDC RBLS TACH

0
9GV0412K3011

9GV0412K3011

Sanyo Denki

FAN 40X28MM 12VDC VANE RBLS TACH

0
9CRA0912P0G001

9CRA0912P0G001

Sanyo Denki

DC AXIAL FAN 92X92X76MM PWM

16
9GV0948H102

9GV0948H102

Sanyo Denki

DC AXIAL FAN 92X92X38MM

0
9LG1424M1D001

9LG1424M1D001

Sanyo Denki

FAN 140X140X38MM 24VDC

14
9HV0924P4G001

9HV0924P4G001

Sanyo Denki

92X25MM, DC, 24V, HIGH STATIC PR

0
109P0412D6D01

109P0412D6D01

Sanyo Denki

FAN 40X20MM 12VDC LOCK

106

DC Brushless Fans (BLDC)

1. Overview

DC Brushless Fans (BLDC) are electronically commutated fans that use permanent magnet rotors and stationary coil stators. Unlike traditional brushed DC fans, BLDC fans eliminate mechanical brushes, reducing wear and tear while improving efficiency. They play a critical role in modern thermal management systems, ensuring reliable cooling for electronics in computers, industrial equipment, automotive systems, and consumer devices. Their advantages include high energy efficiency (up to 90%+), low noise levels (20-50 dB(A)), and extended operational lifespans (>50,000 hours).

2. Main Types and Functional Classification

TypeFunctionality FeaturesApplication Examples
40-60mm Mini FansCompact design, low power (2-5W), PWM controlMini PCs, Network routers
80-120mm Standard FansHigh airflow (50-200 CFM), balanced noise-performanceServers, Power supplies
High-Static Pressure FansOptimized blade design (30-60 Pa pressure), dust resistanceTelecom cabinets, Industrial HVAC
Low-Noise FansAerodynamic blades, hydro bearing ( 25 dB(A))Home appliances, Medical equipment
Smart FansIntegrated sensors, IoT connectivity, variable speedData centers, EV battery cooling

3. Structure and Components

A typical BLDC fan comprises:

  • Stator Assembly: Laminated steel core with three-phase windings
  • Permanent Magnet Rotor: Rare-earth magnets (NdFeB) for high torque
  • Control Circuit: Hall-effect sensors + MOSFET driver IC for electronic commutation
  • Bearing System: Ball bearings (70,000 hours L10) or sleeve bearings
  • Housing: UL94 V-0 rated plastic or aluminum alloy

4. Key Technical Specifications

ParameterTypical RangeImportance
Voltage5V to 48V DCSystem compatibility
Current0.1A to 5APower consumption
Speed600-10,000 RPMDetermines airflow
Airflow10-500 CFMCooling capacity
Noise15-55 dB(A)User experience
MTBF50,000-100,000 hoursReliability indicator

5. Application Areas

Major industries include:

  • IT & Telecommunications: Server racks, 5G base stations
  • Industrial Automation: CNC machines, PLC cabinets
  • Automotive: EV battery cooling, Powertrain systems
  • Consumer Electronics: Gaming PCs, Smart TVs
  • Renewable Energy: Solar inverters, Wind turbine controllers

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
NidecUltraFlo 48V Series85% efficiency, 48V/2A, 120mm
Delta ElectronicsAFB1212SHHPWM control, 200 CFM, 25 dB(A)
SunonMGM2201V1-000U-AHydro bearing, 60,000 hours
Minebea25GA048B12HSmart fan with temperature sensor
Mitsubishi ElectricCA040B12HIP55 rating, 40mm industrial fan

7. Selection Guidelines

Key considerations:

  • Match voltage with system power supply
  • Calculate required airflow using Q=1.76 (P/ T) formula
  • Select bearing type based on operating environment
  • Verify acoustic compliance (ISO 13347-1 standard)
  • Assess control interface (PWM vs. analog voltage)
  • Evaluate environmental ratings (IP, EMC, RoHS)

8. Industry Trends

Future developments include:

  • Integration with IoT sensors for predictive maintenance
  • Adoption of 48V systems in data centers for energy efficiency
  • Development of ultra-thin fans ( 10mm) for mobile devices
  • Use of AI algorithms for dynamic speed optimization
  • Advancements in fluid-dynamic bearings for noise reduction
  • Growth in automotive applications (EV battery cooling market CAGR: 18.7%)

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