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40-70mm DC Axial Fans

Material: Impeller＆Frame: Plastic(UL94V-0)

Bearing Type: Two ball bearings/Sleeve bearing/F.D. Bearing

Weight: 76.0g

Dielectric strength: Applied a 500VAC for 1.0 minute or 600VAC for 2 seconds between housing and both lead wires.

Wire length and the terminal can be customized according to your requirements, default wire length is 200mm.

Auto-restart, Speed detection, Stoppage Alarm, Waterproof, PWM function, Temperature control. The commonly used functions are as follows:

By adjusting the pulse width on the fundamental wave, the voltage and frequency of the sine waves can be adjusted, so as to adjust the speed of the motor.

Every turn of the fan, the internal detection circuit will send 2 pulse signals from the speed measuring line (usually yellow) to the counting circuit on the motherboard. The speed measuring chip of the motherboard only needs to calculate how many pulse signals it receives per second or per minute to realize the speed measuring

TC temperature control function:

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