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Author Topic: Unidentified 4-pin DIP L 9922 [SOLVED]  (Read 3538 times)

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Offline GiskardReventlovTopic starter

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Unidentified 4-pin DIP L 9922 [SOLVED]
« on: February 21, 2014, 11:42:20 pm »
I've had no luck, maybe you know?
« Last Edit: February 22, 2014, 08:16:16 pm by GiskardReventlov »
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Online mikeselectricstuff

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Re: Unidentified 4-pin DIP L 9922
« Reply #1 on: February 21, 2014, 11:48:35 pm »
optoisolator or possibly MOSFET
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Offline GiskardReventlovTopic starter

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Re: Unidentified 4-pin DIP L 9922
« Reply #2 on: February 22, 2014, 12:10:48 am »
Any ideas what company the stylized "L" represents?

I'll try searching some more against mosfet and optoisolator.
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Offline krish2487

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Re: Unidentified 4-pin DIP L 9922
« Reply #3 on: February 22, 2014, 03:02:07 am »
It is a PC817 optocoupler.

The second line is a dead giveaway
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Offline GiskardReventlovTopic starter

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Re: Unidentified 4-pin DIP L 9922
« Reply #4 on: February 22, 2014, 03:15:46 am »
That's why I never found anything, I know now to use any and all numbers to search.
digi-key confirms what you say.  Although they're called optoisolators so @mikeselectricstuff was correct as well. A collaborative effort!

Now I have to read the datasheet.
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Offline amyk

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Re: Unidentified 4-pin DIP L 9922
« Reply #5 on: February 22, 2014, 08:16:03 am »
Quote from: GiskardReventlov on February 22, 2014, 12:10:48 am
Any ideas what company the stylized "L" represents?

I'll try searching some more against mosfet and optoisolator.
LiteOn, the manufacturer. It's an LTV-817.

http://www.us.liteon.com/downloads/LTV-817-827-847.PDF
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Offline GiskardReventlovTopic starter

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Re: Unidentified 4-pin DIP L 9922 [SOLVED]
« Reply #6 on: February 22, 2014, 08:18:05 pm »
LiteOn, if I recall they make good cd/dvd reader/writers. I think this part is from a Coby dvd player.
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Offline GiskardReventlovTopic starter

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Re: Unidentified 4-pin DIP L 9922 [SOLVED]
« Reply #7 on: March 01, 2014, 04:20:02 am »
Maybe the 9922 is a date code 22nd week of 1999.
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