OD4020 Series DC Fan - 5, 12, 24V 40x20mm (1.58”x 0.79”) Frame & Impeller PBT, UL94V-0 plastic Motor Brushless DC, auto restart, impedance and polarity protected Connection Bearing System Insulation Resistance Dielectric Strength Storage Temperature 2x Lead wires 26AWG Ball bearing 10M ohm between leadwire and frame (500VDC) 1 minute at 500 VAC, max leakage < 500 MicroAmp -40C ~ +80C Available Options: Sleeve Bearing Sealed Sleeve Bearing Tachometer Alarm Life Expectancy (L10) Ball - 60,000 hrs (45C) Sleeve - 30,000 hrs (45C) Operating Temperature Ball: -20C ~ 75C Weight: ~0.06 lbs. m1 Model Number Speed (RPM) Airflow (CFM) Noise (dB) Volts DC Voltage Range (VDC) Amps OD4020-05HB 7800 9 36 5 4~7 0.29 OD4020-05LB 6200 7 30 5 4~7 0.14 OD4020-05MB OD4020-12HB OD4020-12MB OD4020-12LB OD4020-24HB OD4020-24MB OD4020-24LB 6900 7800 6900 6200 7800 6900 6200 8 9 8 7 9 8 7 33 5 4~7 36 12 7 ~ 14 30 12 7 ~ 14 33 36 33 30 12 7 ~ 14 24 10 ~ 27 24 10 ~ 27 24 10 ~ 27 0.16 0.10 0.08 0.07 0.09 0.07 0.06 Max. Static Pressure (“H2O) 0.30 0.24 0.19 0.30 0.24 0.19 0.30 0.24 0.19 To indicate sleeve bearing replace “B” suffix with “S” in part number (30,000 hrs life expectancy) To indicate sealed sleeve bearing replace “B” with “SS” in part number (50,000 hrs life expectancy) Knight Electronics, Inc. 10557 Metric Drive Dallas, Texas 75243 214-340-0265 Orion Fans RoHS Compliant 59 Information and data is subject to change without prior notification.