RoHS Compliant
61
Orion Fans
Information and data is subject to
change without prior notification.
Knight Electronics, Inc.
10557 Metric Drive
Dallas, Texas 75243
214-340-0265
OD4028 Series
DC Fan - 5, 12, 24V
40x28mm (1.58”x 1.10”)
Frame & Impeller
PBT, UL94V-0 plastic
Available Options:
Tachometer
Alarm
PWM (Pulse Width Modu-
lated speed control)
Thermistor (Thermal Speed
Control)
Life Expectancy (L10)
Ball - 60,000 hrs (45C)
Sleeve - 30,000 hrs (45C)
Operating Temperature
Ball: -20C ~ 75C
Sleeve: -10C ~ 50C
Weight: ~ 0.08 lbs
Connection
2x Lead wires 26AWG
Motor
Brushless DC, auto restart,
impedance and polarity
protected
Bearing System
Ball bearing or Sleeve
Insulation Resistance
10M ohm between leadwire
and frame (500VDC)
Dielectric Strength
1 minute at 500 VAC, max
leakage < 500 MicroAmp
Storage Temperature
-40C ~ +80C
Model Number
Speed
(RPM)
Airflow
(CFM)
Noise
(dB)
Volts DC
Voltage
Range
(VDC)
Amps
Max. Static
Pressure
(“H
2
O)
OD4028-05H * 7500 10 32 5 3.5 ~ 6 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
* Indicate “B” for ball bearing or “S” for sleeve bearing
m4
(5V not shown)
