Product Content: SANYO DENKI San Ace 38 Low Power (Model 9GA0312P3G0011)
Product Title
SANYO DENKI San Ace 38 Ultra-Low-Noise DC Fan – 9GA0312P3G0011 | 38x28mm, 12V, 4.0W, Smooth Frame, 53.0dB(A), PWM & Pulse Sensor
Product Overview
The SANYO DENKI 9GA0312P3G0011 represents the ultimate convergence of acoustic excellence, energy efficiency, and hygienic design within the San Ace 38 series. Engineered for applications where minimal audible disturbance, minimal power draw, and maximal surface cleanliness are equally critical, this model operates at an industry-leading 53.0 dB(A) while consuming just 4.0 Watts.
Its defining feature is the smooth, non-ribbed plastic frame (Ribbed: No), which eliminates crevices where dust, microbes, or particles can accumulate — making it uniquely suited for sterile environments such as operating rooms, laboratories, and food-processing facilities. Despite its ultra-low speed of 19,000 RPM, it delivers sufficient airflow (0.45 m³/min / 15.9 CFM) and static pressure (460 Pa / 1.85 inchH₂O) for passive cooling in low-heat-density systems.
Equipped with PWM speed control and a pulse sensor, it enables intelligent thermal management and real-time diagnostics. Certified as an Eco Product by SANYO DENKI and compliant with global safety standards, it supports sustainable design goals while delivering unparalleled silence and ease of maintenance.
Key Features
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Industry-Leading Quietness: Sound pressure level of 53.0 dB(A) — the lowest among all San Ace 38 models, quieter than a library.
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Ultra-Low Power Consumption: Only 4.0W rated input — ideal for battery-powered, solar, or energy-constrained systems.
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Smooth, Non-Ribbed Frame: Eliminates dust traps and simplifies sterilization — essential for medical, lab, and food-grade applications.
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Acoustic Optimization: Engineered motor and impeller geometry minimize turbulence and vibration for near-silent operation.
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Smart Control Interface: PWM allows dynamic speed adjustment; pulse sensor provides RPM feedback for predictive maintenance.
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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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Lightweight & Compact: Weighs only 52g — easy to integrate into space-constrained or portable designs.
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Wide Environmental Tolerance: Operates reliably from -20°C to +70°C.
Technical Specifications
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Parameter
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Specification
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Model Number
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9GA0312P3G0011
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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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0.33 A
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Rated Input Power
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4.0 W ← Core Differentiator
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Rated Speed
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19,000 min⁻¹ (RPM)
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Maximum Airflow
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0.45 m³/min (15.9 CFM)
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Maximum Static Pressure
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460 Pa (1.85 inchH₂O)
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Sound Pressure Level (SPL)
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53.0 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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70,000 hours (at 40°C) / 40,000 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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PWM Control, Pulse Sensor, Locked Rotor Detection
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Wire Color Code
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Red (+), Black (-), Yellow (Pulse), Blue (PWM)
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Certifications
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UL, CSA, EN, RoHS, Eco Product
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Ribbed
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No ← Key Differentiator
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Applications
This ultra-quiet, ultra-low-power, smooth-frame fan is optimized for:
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Medical Monitoring Devices: Patient vital signs monitors, ECG machines, infusion pumps — requiring silent, hygienic operation.
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High-Fidelity Audio Equipment: Amplifiers, DACs, preamps, studio monitors — where even minor fan noise ruins listening experience.
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Laboratory Instruments: Spectrometers, microscopes, chromatographs — needing stable, particle-free, vibration-minimized cooling.
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Food & Beverage Processing: Packaging machines, refrigeration units — requiring washable, non-porous surfaces.
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Consumer Electronics: Smart speakers, VR headsets, gaming consoles — prioritizing immersive, distraction-free experiences.
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Green Technology Systems: Solar charge controllers, IoT sensors — maximizing runtime on limited power budgets.
Wiring & Connection Guide
Standard 4-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)
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Blue Wire: PWM Control Input (Typical frequency: 25kHz)
Installation Note: For optimal silence and energy savings, configure PWM duty cycle based on actual thermal load. Leaving PWM pin open may result in full-speed operation depending on controller logic.
Why Choose This Model?
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Quietest Fan in Class: At 53.0 dB(A), it’s nearly imperceptible — quieter than a whisper.
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Lowest Power Draw: Only 4.0W — extends battery life and reduces system heat output.
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Cleanest Surface Design: Non-ribbed frame prevents microbial growth and eases sterilization — critical for regulated industries.
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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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Intelligent Thermal Management: PWM + pulse sensor enable adaptive cooling and remote health tracking.
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Trusted Reliability: Backed by decades of SANYO DENKI engineering excellence and global certifications.
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