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Author Topic: cannot identify this optocoupler  (Read 4122 times)

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Offline EliminateurTopic starter

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cannot identify this optocoupler
« on: February 21, 2011, 07:16:35 pm »
i've been searching for quite some time for the datasheet for an optocoupler i have here, the markings are:
L 0625
817A
Y

i've searched 0625, L0625, 817, 817A, 817Y, nothing...
any ideas?
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Offline Simon

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Re: cannot identify this optocoupler
« Reply #1 on: February 21, 2011, 07:21:30 pm »
do you know the origin the the dvice it is in.

For example i have a medical device mad in Russia many years ago, It had some weird named DIP14 chips in it that turned out to be the russian version of the 7400
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Offline Zero999

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Re: cannot identify this optocoupler
« Reply #2 on: February 21, 2011, 07:29:22 pm »
Yes the Russians copied many ICs from the US, including those used in some electronic games which amusingly exhibited the same bugs.

Do you have a picture of the PCB or a schematic?
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Offline Bored@Work

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Re: cannot identify this optocoupler
« Reply #3 on: February 21, 2011, 08:00:51 pm »
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Offline EliminateurTopic starter

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Re: cannot identify this optocoupler
« Reply #4 on: February 21, 2011, 08:19:06 pm »
Bored takes the jackpot!, i found a similar device datasheet but wasn't convinced, so yeah... run-of-the-mill optocoupler...

i wish i had an schematic!, it's from a Dell AC brick(which incidentally i have opened in another thread) that's misbehaving and i have no idea why
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Offline Zero999

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Re: cannot identify this optocoupler
« Reply #5 on: February 21, 2011, 09:15:57 pm »
It's there to provide an isolated feedback path from the secondary to primary side and is unlikely to have failed so check out the other components before replacing it.
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