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Author Topic: Help identify component  (Read 1097 times)

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Offline 4cx10000Topic starter

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Help identify component
« on: May 27, 2020, 09:00:51 pm »
Hi!

The 3 pin device 817A is one of two located on a small pcb in a plastic housing with a thumb wheel. Very close to these two 817A is a tiny magnet which is rotated by the thumb wheel. Guess, but I am not sure, that it is controlling a proportional valve in an excavator. Anyone out there seen it or know what it is?
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Offline helius

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Re: Help identify component
« Reply #1 on: May 27, 2020, 09:05:16 pm »
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Offline 4cx10000Topic starter

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Re: Help identify component
« Reply #2 on: May 27, 2020, 09:11:33 pm »
Thanks a lot helius!!

Wow you found it! I searched the internet for quiet some time, but to no avail and you found it in a couple of seconds!!  :-DD Now I will try to search for a distributor that stock them. Thanks again!  :)
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Offline fzabkar

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Re: Help identify component
« Reply #3 on: May 27, 2020, 09:36:06 pm »
The magnet was the clue that the device was a Hall Effect sensor.

https://www.google.com/search?q=817a+filetype:pdf+"hall effect"
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