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What is this electronic item?

Posted: Mon Dec 26, 2011 10:48 pm
by Nandika
Hi Friends,
i want to know about fllowing item(in photo).
4IN1.jpg
4IN1.jpg (378.56 KiB) Viewed 6130 times
this item has been used in power supply unit of computer,CD-DVD Player,TV,...
Also i have seen this communication port(connect to PC) of UPS.
What is item and function(action) of this item?

thanks

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Re: What is this electronic item?

Posted: Tue Dec 27, 2011 5:56 pm
by Saman
Same post What is this electronic item ?
The answer is correct. It's an optocoupler.

Re: What is this electronic item?

Posted: Mon Jan 16, 2012 10:09 pm
by Chamith119
oyata wadi wisthara dana ganna one nam wikipidia balanna . me component ekata optocuple , photo cupler kiyana nam 2ma kiyanava .

PC521
PC817 see data sheets

Re: What is this electronic item?

Posted: Mon Feb 06, 2012 12:23 am
by Nandika
thank you Chamith119.
i read wikipedia artical.
now i have some knowladge about opto-isolaters.
i will read data sheet that provied you.
thanx

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