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Topic: Help to identify a Magnetic speed sensor (Read 65 times) previous topic - next topic



Some time ago I salvaged this Magnetic speed sensor, donĀ“t ask where it come. It was from a computer or audio devices.

It come with a shaft and a circular magnet on top of it, like in this example:

speed sensor

A close pic:

what I know so far:

pin 4 and 8 are connected to GND, before disassembling the device, I could identify the GND.
pin 2 and 6 are connected together.

just labelled M318 on the pcb.

Thanks for any clue.

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