SANYO DENKI|San Ace 40 9RA 40×40×20mm DC Axial Fan | Low Noise High Efficiency Cooling Solution

San Ace 40 9RA 40×40×20mm DC Axial Fan Released: A New Balanced Solution of Low Noise and High Energy Efficiency

As power electronics, communication systems, and medical devices continue to evolve toward higher density and smaller form factors, thermal management systems are facing increasingly strict requirements. Fans must not only provide stable airflow performance but also achieve lower noise and reduced power consumption.

To address these challenges, SANYO DENKI has introduced the new San Ace 40 9RA series 40×40×20mm DC axial fan, delivering a more efficient and quieter cooling solution for compact electronic equipment.

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1. Product Overview

The San Ace 40 9RA (40×40×20mm) is a high-reliability DC axial fan designed for industrial applications. It maintains stable airflow performance while significantly improving noise reduction and energy efficiency.

Key Specifications:

• Size: 40 × 40 × 20 mm
• Fan type: DC axial fan
• Rated voltage: 5V / 12V / 24V
• Expected life: 60,000 hours (at 60°C)
• Applications: Power supplies, inverters, medical devices, communication equipment

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2. Key Performance Advantages

1. Significant Noise Reduction (up to -7 dB(A))

Compared with conventional 40mm fans, the San Ace 40 9RA achieves a maximum noise reduction of approximately 7 dB(A).

At 6500 min⁻¹ operating speed:

• Conventional model: ~28 dB(A)
• 9RA series: ~21 dB(A)

This reduction provides a noticeably quieter operating environment, especially in noise-sensitive applications such as medical and office equipment.

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2. Low Power Consumption for Higher Energy Efficiency

Through optimized motor drive design and aerodynamic improvements, the 9RA series reduces power consumption by more than 50% compared to previous models.

Typical comparison:

• Conventional model: ~1.08 W
• 9RA series: ~0.48 W

This contributes to:

• Lower system heat generation
• Improved overall energy efficiency
• Reduced thermal stress on components

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3. Improved Static Pressure for High-Resistance Airflow Paths

While maintaining stable airflow, the 9RA series significantly improves static pressure performance:

• Maximum static pressure: approx. 54 Pa (at 6500 min⁻¹)
• About 20% higher than conventional models

This makes it highly suitable for compact systems with complex airflow resistance, such as densely packed electronic modules.

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3. Performance Specifications (40×40×20mm)

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4. Typical Applications

1. Switching Power Supplies (SMPS)

Compact power systems require high static pressure airflow due to dense internal structures. The 9RA series ensures stable cooling performance with low noise and low power consumption.

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2. Inverters and Energy Storage Systems

These systems operate continuously under high thermal loads. The 9RA fan provides long-life operation and improved energy efficiency, reducing overall system thermal stress.

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3. Medical Equipment

Medical environments require extremely low noise levels. With noise as low as 17 dB(A), the 9RA series significantly improves user comfort and equipment usability.

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4. Communication and Industrial Control Systems

High-density PCB layouts often create restricted airflow paths. The improved static pressure helps ensure stable cooling of critical components.

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5. Reliability and Design Features

The San Ace 40 9RA series is designed for industrial-grade reliability:

• Frame material: UL94V-0 flame-retardant plastic
• Protection features: Locked rotor protection, reverse polarity protection
• Environmental compliance: RoHS compliant
• Certification: Eco Product certified

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6. Selection Guide

• Low noise priority: M type (5000 min⁻¹)
• Balanced performance: F type (6500 min⁻¹)
• High cooling demand: H type (7800 min⁻¹)

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7. Conclusion

The San Ace 40 9RA 40×40×20mm DC axial fan delivers a well-balanced solution by significantly reducing noise and power consumption while maintaining stable airflow performance. It is an ideal thermal solution for modern high-density and compact electronic systems.

For detailed specifications or application support, selecting the appropriate model based on system requirements is recommended to achieve optimal cooling performance.