Sunon's maglev bearing system provides whisper quiet operation and superior resistance to dust and debris, extending the operational lifetime of the motor. Specifications Mechanical Characteristics Motor Design: Single phase, 4 poles brushless DC motor Bearing System: Vapo bearing system Frame Material: Thermoplastic PBT of UL94V-0 Blade Material: Thermoplastic PBT of UL94V-0 Direction of Rotation: Counter clockwise viewed from the front of the fan blade Mounting Holes: 3x 3.2mm holes Weight: 10.5g Dimensions: 35 x 35 x 10mm Electrical Characteristics Rated Voltage: 12V DC Rated Current: 60mA (69mA max) Rated Power Consumption: 0.72W (0.83W max) Operating Voltage Range: 6~13.8V DC Starting Voltage: 6V DC (25°C Power On/Off) Operating Temperature: -10°C ~ +70°C Storage Temperature: -40°C ~ +70°C Performance Characteristics Rated Speed: 10,000 RPM ±15% at rated voltage Air Flow: 7.2 CFM Static Pressure: 0.22 Inch-H2O Noise Level: 28dB(A) Insulation Class: UL Class A Insulation Resistance: 10MΩ at 500V DC between internal stator and lead wire (+) Dielectric Strength: 500V AC for one minute or 600V AC for 2 seconds between housing and lead wire (+) Life Expectancy: 60,000 hours at 40°C, 65% RH, 90% CL Protection: Automatic restart, polarity protection