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Thanks for the easy to follow explanation of how to rest an optocoupler. Wade on February 5, at 9: You have JavaScript disabled or are viewing the site on a device that does no support JavaScript.

C Datasheet(PDF) – COSMO Electronics Corporation

With no voltage applied to the LED pins 1 and 2and with an open base pin 6there should be a high resistance between pins 5 and 4. How can i test them? Arvind Vijaykumar on June 1, at Mihai on February 6, at You helped me understand how to use a tester on a optocoupler Thanks.


I guess, it should work mostly the same as a normal triac.

These information are very good indeed. Blumen on October 26, at 7: The firehose by day and forty beers by night, An engineer may never sleep and still be just as bright.

Good design is as little design as possible. Siroos on October 14, at I was referring to the junction resistance. Any help would be apreciated. Some features may not work properly. Did you reffer to isolation resistance when you mention some phototransistors have high resistance?

This site uses Akismet to reduce spam. The optocoupler is FL Datasheett F, should i just join the emittor and collector pins? Nupra on March 18, at 6: Thank you for the information… and i have one more clarifications.

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Hi, Both methods are correct. An optocoupler or optoisolatoris a device that contains a light-emitting diode LED and a photosensor photodetector, such as a photoresistor, a photodiode, a phototransistor, …etc.

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Ado on November 14, at The fosmo1010 never solved anything, but neither did water or milk. For response time or frequency response data, check the datasheet.

cosmo j 18 c datasheet & applicatoin notes – Datasheet Archive

Thank you for the information. Better check the datasheet for a test circuit. Here I want to show you how to check if an optocoupler is working. Here is the web site.

Mihai on August 27, at Mihai on July 19, at 3: Mihai on July 15, at 8: Thx and best regards, Geert. First of all thanks for sharing such an useful information.

Michael on January 21, at 3: