SANYO DENKI San Ace 40 9RA 40×40×28mm DC Fan | Low Noise High Efficiency Cooling Fan

With the continuous trend toward compact, energy-efficient, and low-noise electronic systems, SANYO DENKI introduces the San Ace 40 9RA series (40×40×28mm DC cooling fan)—a new solution designed to deliver balanced cooling performance, reduced noise, and improved energy efficiency.

This article provides a comprehensive overview of the product positioning, key features, specifications, and application scenarios.

1. Product Positioning: Optimized for Low Noise and Efficiency

The San Ace 40 9RA (4028) series represents a shift from traditional “high-performance-only” fans to a more balanced performance approach.

Key Positioning:

• Low noise operation
• Reduced power consumption
• High reliability and long lifespan
• Compliance with environmental standards

Ideal for applications requiring quiet and stable cooling performance.

2. Key Features and Advantages

2.1 Low Noise Performance

Compared with conventional 40×40×28mm fans:

• Noise reduced by approximately 4 dB(A)
• Minimum noise level as low as 16 dB(A)

Benefits:

• Lower overall system noise
• Improved user experience
• Suitable for noise-sensitive environments

2.2 Low Power Consumption

The 9RA series significantly improves energy efficiency:

• Power consumption range: 0.42W to 1.20W
• Up to 49% reduction compared to conventional models

Benefits:

• Reduced system power consumption
• Lower thermal load
• Improved energy efficiency

2.3 High Reliability and Long Life

• Expected lifespan: 60,000 hours (L10 life)
• Operating condition: 60°C, rated voltage

Additional protections:

• Locked rotor protection
• Reverse polarity protection

Ensuring stable operation under demanding conditions.

2.4 Environmental Compliance

• Compliant with RoHS Directive
• Uses lead-free materials
• Certified as Eco Product

Supports global environmental and sustainability requirements.

3. Key Specifications (40×40×28mm)

General Specifications

• Dimensions: 40 × 40 × 28 mm
• Weight: 40 g
• Material: UL94V-0 flame-retardant plastic
• Operating temperature: -20°C to +70°C

Representative Models

Electrical Characteristics

• Insulation resistance: ≥10MΩ (500VDC)
• Dielectric strength: 500VAC / 1 minute
• Signal output: Pulse sensor supported

Customization options:

• Sensor-less version
• Locked rotor sensor

4. Comparison with Conventional 40×40×28mm Fans

Compared to previous high-performance models (e.g., 9HVA, 9GA series), the 9RA series adopts a different design philosophy.

5. Typical Applications

The San Ace 40 9RA (4028) series is suitable for:

5.1 Power Supply Units (PSU)

• Stable and continuous operation
• Low noise requirements

5.2 Inverters

• Long operating hours
• Efficiency-focused cooling

5.3 Medical Equipment

• Noise-sensitive environments
• High reliability requirements

5.4 Compact Electronic Devices

• Limited installation space
• Continuous thermal management

6. Selection Guidelines

Recommended for 9RA Series:

• Noise-sensitive applications
• Energy-efficient system design
• Long-term continuous operation

Recommended for Conventional High-Performance Fans:

• Extremely high heat density
• High static pressure requirements

7. Conclusion

The SANYO DENKI San Ace 40 9RA (40×40×28mm) series delivers a well-balanced combination of:

• Low noise
• Low power consumption
• High reliability

It provides an optimized cooling solution for modern electronic systems that demand both performance and efficiency.