C datasheet, C circuit, C data sheet: COSMO – High Reliability Photocoupler,alldatasheet, datasheet, Datasheet search site for Electronic. DEMKO · FIMKO FI · NEMKO P · Datasheet. Legislation and Compliance. RoHS Certificate of Compliance. Statement of conformity. cosmo datasheet, cross reference, circuit and application notes in pdf format.

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If i give the input of V DC what will be the response of this optocoupler…. Hi, maybe a stupid question: You helped me understand how to use a tester on a optocoupler Thanks. For the triac pins 4 and 6with no voltage applied to the LED pins 1, 2check with an ohmmeter the resistance between pins 4 and 6, it should be high open circuit or at least greater than 1 megohm both ways, and this resistance should go down lower than ohms when voltage is applied to the LED, and should remain low even if the voltage is no longer present on the LED.

With no voltage applied to the LED pins 1 and 2and with an datashfet base pin 6there should be a high resistance between pins 5 and 4.

cosmo datasheet & applicatoin notes – Datasheet Archive

Evis on November 12, at 7: I was referring to the junction resistance. It depends on the 2nd circuit you are supplying the voltage on collector of the optocoupler, optocoupler will never cosmo10110 the voltages of circuit1 to circuit2, it decreases resistance between cosom1010 supplied voltages at cosom1010 and emitter on the input of circuit2. Mihai on March 18, at How can i test them? Some features may not work properly. Your email address will not be published.

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Thank you for datashet information. Michael on January 21, at 3: Arvind Vijaykumar on June 1, at This site uses Akismet to reduce spam. Step 2 If the LED is good then we should check the phototransistor, you could measure it with the ohmmeter just like the LED between pins 3 and 4 the emitter and collectorand you should get a high resistance value both ways if the phototransistor is good.

Shahid on August 7, at 1: What if there is photo-Triac instead of Photo-transistor, How to test then? Mihai on July 16, at 5: Leave a Reply Cancel reply Your email address will not be published.

Please correct the pin numbers in image. Mihai on October 28, at I use analog ohmmeter with 2 internal batteries, 3V to turn on LED pins 1 and 2and digital V-metar on diode tester mode on transistor side.

Here datasbeet the web site.

Geert Van Droogenbroeck on November 18, at But what i want to mention is there is a different testing circuit on the datasheet of H11B1. Mihai on September 17, at Mihai on February 6, at You have JavaScript disabled or are viewing the site on a device that does no support JavaScript. The question is which one is the right testing dataeheet

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Learn how your comment data is processed. The firehose by day and forty beers by night, An engineer may never sleep and still be just as bright.

Thanks for the easy to follow explanation of how to rest an optocoupler. Mihai on August 27, at Mihai on November 20, at 1: Viliam on September 7, at 1: Did you reffer to isolation resistance when you mention some phototransistors vosmo1010 high resistance? Thank you for the information… and i have one more datashset. I guess, it should work mostly the same as a normal triac. 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.

I was wondering if i could just bypass the optcoupler and see if it works. I have two circuits. Here I want to show you how to check if an optocoupler is working. I hope it helps. If the input is at 2V DC, then the output resistance should be around — ohms. When Firefox stops working, you fire up Chrome.