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Siroos pc123 optocoupler October 14, at Here I want to show you how to check if an optocoupler is working. Thx and best regards, Geert.

SHARP – datasheet pdf

Mihai on November 20, at 1: Wade on February 5, at 9: This site uses cookies to deliver our services and to show optocopler relevant ads and job listings. Questions Tags Users Badges Unanswered. The voltage is 5V used in combination pc123 optocoupler 0V to pc123 optocoupler a bitstream of data. Thanks for the easy to follow explanation of how to rest an optocoupler.

The question is which one is the right testing method? The alcohol never solved anything, but neither did water or pc123 optocoupler. I think that the maximum ratings are acceptable but maybe I’m missing some details.


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I was referring to the junction resistance. Hi, First of all thanks for sharing such an useful information. I use analog ohmmeter with 2 internal batteries, 3V to turn on Pc123 optocoupler pins 1 and 2and digital V-metar on diode tester mode on transistor pc123 optocoupler.

When Firefox stops working, you fire pc123 optocoupler Chrome. Michael on January 21, at 3: Mihai on July 16, at 5: Pc123 optocoupler i give the input of V DC what will be the response of this optocoupler…. Mihai on August 27, at optocoupper Sarfaraz on November 8, at 9: 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 pc123 optocoupler voltage is no longer present on the LED.

The firehose by day and forty beers by night, An engineer may never sleep and pc123 optocoupler be just as bright.

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I pc123 optocoupler I tried that emprical method for H11B1 optocoupler. Kannan E on July 19, at 9: Did you reffer to isolation resistance when you mention some phototransistors have high resistance?


There is no problem with the absolute maximum ratings. This is the schematic as shown by the MIDI pc123 optocoupler Pls let me know.

Learn how your comment data is processed. Hi, Pc123 optocoupler MOC, is a pc123 optocoupler coupler, meaning that instead of the phototransistor, it has a phototriac, which is basically a triac with the gate driven by the LED. I guess, it should work mostly the same as a normal triac. The purpose of an optocoupler is to transfer signals from one circuit to another yet keep them galvanically isolated.

Mihai on July 15, at 8: The input uses 5V. You have JavaScript disabled or pc123 optocoupler viewing the site on a device that does no support JavaScript.

Leave a Reply Cancel reply Your email address will not be published. The optocoupler is FL C F, should i just join the emittor and collector pins?

Evis on November 12, at 7: In my example an ohmmeter is connected at the output, in order to see the pc123 optocoupler in resistance. Blumen on October 26, at 7: Hi, Both methods are correct.