Description
The Sunon HA40101V4-1000U-A99 (also known as HA40101V41000UA99) is an ultra-compact 40 x 40 x 10 mm (1.57 x 1.57 x 0.39 in) brushless DC tubeaxial cooling fan powered by an efficient single-phase, 4-pole motor. Operating on a nominal 12 VDC supply across a flexible 3.7 to 13.8 VDC range, it delivers 5.4 CFM (9.18 m³/h) of airflow and 0.09 in H₂O (22.4 Pa) of static pressure while drawing only 0.34 W at 5000 RPM. Constructed from flame-retardant UL 94V-0 thermoplastic PBT, this fan utilizes Sunon’s proprietary MagLev Precise Vapo-Bearing system to maintain ultra-quiet 15.7 dB(A) operation and achieve an L10 service life of 70,000 hours at 40 °C. The unit includes integrated polarity protection, locked-rotor automatic restart, and two 300 mm UL1007 AWG 26 wire leads for clean electrical integration.
Key Features
- MagLev Vapo-Bearing: Patented magnetic levitation eliminates mechanical contact friction, ensuring whisper-quiet 15.7 dB(A) acoustics and extended operating lifespan.
- Energy-Efficient Motor: Single-phase 4-pole brushless architecture operates reliably from 3.7 VDC starting threshold while drawing merely 28 mA nominal.
- Rugged Flame-Retardant Build: Frame and impeller constructed of UL 94V-0 thermoplastic PBT provide superior flame and heat resistance in tight spaces.
- Locked-Rotor Protection: Automated shutdown and 10-second restart sequencing prevent motor coil burnouts during accidental impeller stalls.
- Long Service Reliability: Rated for 70,000 continuous operating hours under 40 °C ambient conditions to minimize unplanned maintenance.
Technical Specifications
| Manufacturer | Sunon |
|---|---|
| Manufacturer Part Number (MPN) | HA40101V4-1000U-A99 |
| Alternate Part Number | HA40101V41000UA99 |
| Product Series | MagLev HA Series |
| Product Category | DC Axial Fans |
| Fan / Component Type | Tubeaxial Cooling Fan |
| Motor Design | Single phase, 4-poles Brushless DC motor |
| Phase & Supply Type | 1-Phase DC |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 3.7 to 13.8 VDC |
| Min. Starting Voltage | 3.7 VDC (at 25 °C power on/off) |
| Speed (RPM) | 5000 RPM ± 15% |
| Power Rating | 0.34 W (340 mW) |
| Max. Power Consumption | 0.45 W (450 mW) |
| Safety Power Consumption | 0.43 W (Label Rating) |
| Rated Current | 28 mA (0.028 A) |
| Max. Current Draw | 37 mA (0.037 A) |
| Airflow | 5.4 CFM (9.18 m³/h / 0.153 m³/min) |
| Static Pressure | 0.090 in H₂O (22.4 Pa / 2.29 mmH₂O) |
| Noise Level | 15.7 dB(A) |
| Airflow Direction | Air intake over struts, exhaust out front |
| Dimensions (L × H × D) | 40 x 40 x 10 mm (1.57 x 1.57 x 0.39 in) |
| Mounting Hole Pitch | 32.0 ± 0.3 mm (1.26 in) |
| Mounting Hole Diameter | 4.3 mm (4 holes) |
| Recommended Screw Spec | Machine screw M4.0 (3~4 Kgf-cm) / Self-tapping 5.0 mm (6~8 Kgf-cm) |
| Housing Material | Thermoplastic PBT (UL 94V-0) |
| Impeller Material | Thermoplastic PBT (UL 94V-0) |
| Bearing Type | Precise Vapo-Bearing System (MagLev) |
| Direction of Rotation | Counter-clockwise viewed from front of fan blade |
| Weight | 15.4 g (0.034 lbs) |
| Termination & Cable Specs | 2 Lead Wires, UL 1007 AWG 26, Length: 300 +10/-0 mm |
| Wiring Pinout / Connection | Red: (+) VDC, Black: (-) GND |
| Motor Protection | Automatic Restart (within 10s of stall) & Reverse Polarity Protection |
| Insulation Class | UL Class A |
| Insulation Resistance | >= 10 MΩ at 500 VDC between internal stator and lead wire (+) |
| Dielectric Strength | AC 500 V for 1 minute or AC 600 V for 2 seconds between housing and lead wire (+) |
| Operating Temperature | -10 °C to +70 °C (14 °F to 158 °F) |
| Storage Temperature | -40 °C to +70 °C (-40 °F to 158 °F) |
| Operating Humidity | 65% RH (test baseline up to 90~95% RH per test spec) |
| Service Life (L10) | 70,000 Hours at 40 °C, 65% RH, 90% CL |
| Standards & Compliance | UL (E77551), CUR (E77551), TUV, CE, UKCA, RoHS Directive 2011/65/EU |
Applications
Sunon HA40101V4-1000U-A99 compact tubeaxial fans provide critical spot cooling in density-constrained electronic enclosures, 1U rackmount appliances, and enterprise network switches. They are widely specified in embedded industrial motherboards, telecommunications transceivers, IoT gateway controllers, and medical diagnostic desktop devices. These micro fans also serve as direct OEM and MRO drop-in replacements for power distribution units, lab instrumentation, and 3D printer hotend assemblies where quiet operation and continuous reliability are paramount.
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