Product Content: SANYO DENKI San Ace 38 Low Power (Model 9GA0312H3001)
Product Title
SANYO DENKI San Ace 38 Ultra-Low-Noise DC Fan – 9GA0312H3001 | 38x28mm, 12V, 1.08W, 9,200 RPM, 37.0dB(A), Pulse Sensor Only
Product Overview
The SANYO DENKI 9GA0312H3001 redefines the boundaries of acoustic silence and energy efficiency within the San Ace 38 series — now in its most economical and whisper-quiet form. Engineered for applications where minimal audible disturbance, minimal power consumption, and simplified control are paramount, this model operates at an industry-leading 37.0 dB(A) while consuming just 1.08 Watts — making it the quietest and most energy-efficient variant ever produced in the San Ace 38 lineup.
Operating at a conservative speed of 9,200 RPM, it delivers 0.22 m³/min (7.77 CFM) airflow and 108 Pa (0.43 inchH₂O) static pressure — sufficient for passive cooling in ultra-low-heat-density systems such as IoT sensors, wearable medical devices, and compact consumer electronics. Its ribbed plastic frame ensures structural integrity without compromising acoustic performance.
Equipped with a pulse sensor only (no PWM control), it provides real-time RPM feedback for basic diagnostics while eliminating complexity and cost associated with dynamic speed regulation. Certified as an Eco Product by SANYO DENKI and compliant with global safety standards, it supports sustainable design goals while delivering unparalleled silence.
Key Features
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Industry-Leading Quietness: Sound pressure level of 37.0 dB(A) — the lowest among all San Ace 38 models, quieter than a whisper.
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Ultra-Low Power Consumption: Only 1.08W rated input — ideal for battery-powered, solar, or energy-constrained systems.
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Simplified Control Interface: Pulse sensor only — reduces system complexity and BOM cost for fixed-speed applications.
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Acoustic Optimization: Engineered motor and impeller geometry minimize turbulence and vibration for near-silent operation.
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Global Compliance: Meets UL, CSA, EN, RoHS standards; officially recognized as an Eco Product by SANYO DENKI.
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Durable Ribbed Frame: Enhances rigidity and vibration resistance despite lightweight construction.
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Wide Environmental Tolerance: Operates reliably from -20°C to +70°C.
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Compact Form Factor: Standard 38mm x 38mm x 28mm size fits most existing enclosures.
Technical Specifications
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Parameter
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Specification
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Model Number
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9GA0312H3001
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Series
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San Ace 38 Low Power (9GA Series)
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Manufacturer
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SANYO DENKI Co., Ltd.
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Frame Size
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38 mm x 38 mm
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Thickness
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28 mm
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Rated Voltage
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12 VDC
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Operating Voltage Range
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10.8 ~ 13.2 VDC
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Rated Current
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0.09 A
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Rated Input Power
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1.08 W ← Core Differentiator
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Rated Speed
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9,200 min⁻¹ (RPM)
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Maximum Airflow
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0.22 m³/min (7.77 CFM)
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Maximum Static Pressure
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108 Pa (0.43 inchH₂O)
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Sound Pressure Level (SPL)
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37.0 dB(A) ← Lowest in Class
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Bearing System
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Ball Bearing
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Expected Life
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90,000 hours (at 40°C) / 60,000 hours (at 60°C)
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Operating Temperature
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-20°C to +70°C
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Storage Temperature
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-25°C to +70°C
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Weight
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Approx. 52 g
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Material
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Frame: Plastic / Impeller: Plastic
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Functions
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Pulse Sensor Only, Locked Rotor Detection
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Wire Color Code
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Red (+), Black (-), Yellow (Pulse)
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Certifications
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UL, CSA, EN, RoHS, Eco Product
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Ribbed
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Yes
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PWM Control Function
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No ← Key Differentiator
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Applications
This ultra-quiet, ultra-low-power, simplified-control fan is optimized for:
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IoT & Edge Devices: Smart sensors, gateways, wearables — requiring silent, long-life cooling on minimal power.
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Portable Medical Instruments: Blood glucose monitors, pulse oximeters, handheld ultrasound — needing silent operation in patient-facing environments.
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Consumer Electronics: Wireless earbuds cases, smartwatches chargers, VR headset docks — prioritizing user comfort and aesthetics.
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Home Automation Systems: Smart thermostats, security cameras, voice assistants — where background noise must be eliminated.
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Educational & Lab Tools: Microscopes, spectrometers, teaching aids — used in quiet classrooms or research labs.
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Green Technology Systems: Solar charge controllers, battery management units — maximizing runtime on limited power budgets.
Wiring & Connection Guide
Standard 3-wire interface:
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Red Wire: +12V Power Input
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Black Wire: Ground (GND)
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Yellow Wire: Pulse Sensor Output (Open collector, 2 pulses per revolution)
Installation Note: This model does not support PWM speed control. It will operate at full rated speed when powered. For variable speed applications, consider models with PWM function (e.g., 9GA0312P3G001).
Why Choose This Model?
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Quietest Fan in Class: At 37.0 dB(A), it’s nearly imperceptible — quieter than a whisper.
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Lowest Power Draw: Only 1.08W — extends battery life and reduces system heat output significantly.
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Cost-Effective Simplicity: No PWM circuitry = lower BOM cost and easier integration for fixed-speed needs.
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Acoustic Engineering Excellence: Specifically tuned for minimal turbulence and mechanical resonance.
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Eco-Certified Sustainability: Officially designated as an Eco Product by SANYO DENKI.
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Trusted Reliability: Backed by decades of SANYO DENKI engineering excellence and global certifications.
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