OD9238 Series - High Speed Frame & Impeller Connection Motor Bearing System Insulation Resistance Dielectric Strength Temperature Range Storage Temperature Life Expectancy PBT, UL94V-O plastic 4x Lead wires * Brushless DC, auto restart, polarity protected. Dual ball bearing Min. 10M at 500VDC 1 minute at 500VAC / 1 second, max leakage 500 microamp -20C ~ +70C DC Fan - 12V, Tachometer, PWM 92x38mm (3.62” x 1.5”) Available Options: * Connection: Red (+) Black (-) White - Tachometer Open Collector Blue - PWM UL1430, 24AWG ~300mm Weight: ~ 255 g -40C ~ +80C 50000 hours (40C) Part Number OD9238-12HHBXC10A Nominal Current 3.5 A Nominal Voltage Rated Power Rated Speed (RPM) Airflow (CFM) Noise Level (dB) Max. Static Pressure Knight Electronics, Inc. 10557 Metric Drive Dallas, Texas 75243 214-340-0265 PWM Duty Cycle Ref. Speed (RPM) 0% 0 40% 3200 ± 15% 70% 5600 ± 12% 100% 8000 ± 10% 12 VDC 42 W 8000 11.1 11.2 11.3 11.4 11.5 174 68 11.6 The preferred operating frequency for the fan is 25kHz. PWM signal frequency range from 18kHz~30kHz. At 100% duty cycle, the fan will operate at maximum speed. At 0% duty cycle, the fan is not rotate. The fan will default to operate at maximum speed when the speed control input is left connected. At 25kHz with 20% duty cycle (Vcc = 24VDC), the fan will be able to start from a dead stop. 1.7” H2O Orion Fans RoHS Compliant Information and data is subject to change without prior notification.