DC Fan - 5, 12, 24V 40x28mm (1.58”x 1.10”) OD4028 Series Frame & Impeller PBT, UL94V-O plastic Available Options: Connection 2x Lead wires 26AWG Motor Brushless DC, auto restart, impedance and polarity protected Bearing System Ball bearing or Sleeve Tachometer (FG) Alarm (RD) PWM (Pulse Width Modulated speed control) Thermistor (Thermal Speed Control) Insulation Resistance 10M ohm between leadwire and frame (500VDC) Dielectric Strength 1 second at 500 VAC, max leakage - 500 MicroAmp Storage Temperature -30C ~ +90C Life Expectancy (L10) Ball - 60,000 hrs (45C) Sleeve - 30,000 hrs (45C) Operating Temperature Ball: -20 ~ 80C Sleeve: -10 ~ 50C (5V not shown) m4 Speed (RPM) Airflow (CFM) Noise (dB) Volts DC Voltage Range (VDC) Amps Max. Static Pressure (“H2O) OD4028-05H * 7500 10 32 5 4~7 0.35 0.24 OD4028-05M * 6500 9 29 5 4~7 0.30 0.17 OD4028-05L * 5000 7 25 5 4~7 0.22 0.10 OD4028-12H * 8800 12 37 12 7~14 0.20 0.32 OD4028-12M * 8000 11 35 12 7~14 0.18 0.25 OD4028-12L * 5000 7 25 12 7~14 0.12 0.10 OD4028-24H * 8800 12 37 24 10~27 0.16 0.32 OD4028-24M * 8000 11 35 24 10~27 0.12 0.25 OD4028-24L * 5000 7 25 24 10~27 0.09 0.10 Model Number * Indicate “B” for ball bearing or “S” for sleeve bearing Knight Electronics, Inc. 10557 Metric Drive Dallas, Texas 75243 214-340-0265 Orion Fans RoHS Compliant 32 Information and data is subject to change without prior notification.