Axial PC fan MDV series

Variable Speed DC Input Axial Fans - MDV Series The MDV Series DC Axial fans easily allow for changes in fan speed. They employ a PWM control method by which speed is changed with a PWM control circuit (not supplied). The MDV Series is available in frame sizes from 2.36 in. (60 mm) up to 4.72 in. (120 mm). Speed Control Using PWM Control The speed changes according to the duty ratio of the input pulse signals. This allows the air flow and static pressure to be adjusted, resulting in a reduction in noise and power consumption. Pulse Sensor Type Outputs a pulse signal while the cooling fan is rotating. Two pulses are output per revolution of the fan. Fan speed is monitored as the host controller, etc., reads the output pulses. This function helps you set a desired output speed for alarm activation. Axial Fans Axial fans use a propeller to generate airflow in the direction of the axis of rotation. Capable of generating a large air flow, axial fans are suited for applications requiring ventilation cooling. Device Ventilation and Cooling The large airflow of axial fans is suitable for ventilation and cooling inside electronic devices.