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Where can I buy an optocoupler? Answered

I should be using an optocoupler for a circuit I am building, but I have no idea where to buy them. Radioshack has no hits for them. I'd prefer not to have to buy online. Where can I find these in a store?

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iceng

Best Answer 7 years ago

When you give you get

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appolo

7 years ago

You can find them in scrap USB corded computer mice!! it's the device that the segmented rotating discs turn through!! and known as opto couplers.

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iceng

7 years ago

You can scavenge them from TV power supplies.

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steveastrouk

7 years ago

Look up electronic supply stores in the phonebook, or use one of the catalogue guys like Newark, Digikey whatever.

Also look for "opto-isolator" instead.

Steve

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orksecuritysteveastrouk

Answer 7 years ago

Good point; "opto-isolator", with or without the dash, is probably a better bet.

I foolishly assumed that if the querant didn't like buying via the Internet s/he wouldn't want to buy via paper mail either. But that isn't always true.

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orksecurity

7 years ago

Find a real electronic parts store. Yes, they are few and far between these days outside -- and even inside -- major cities. Some of the old stores which still do home-entertainment repair still have parts. If you've got a local community of experimenters -- if someone's running a hackerspace -- they might have some stock.

But you may not have any alternative to mail-ordering, or assembling your own out of an LED and a photosensor. See the "make a simple optocoupler" Instructable; it's at the top of the Related column at right.