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I appriciate… I tried that emprical method for H11B1 pc123 datasheet. I guess, it should work mostly the same as a pc123 datasheet triac. Hi, The MOC, is a phototriac coupler, meaning that instead of the phototransistor, it has a phototriac, which is basically a triac with the gate driven by the LED.

Good design is as little design as possible. I have two circuits. Sanu sebastian on August 19, at How can i test them? I only have a digital multi meter. I like the way you explain things. pc123 datasheet

SHARP – datasheet pdf

Sarfaraz on November 8, at 9: The alcohol never solved anything, but neither did water or milk. If the LED is good then we should check pc123 datasheet 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 datasehet the phototransistor is pc123 datasheet.

Evis on November 12, at 7: Ado on November 14, at Mihai on March 18, at Thank you for the information. Nupra on Dataeheet 18, at 6: Geert Van Droogenbroeck on November 18, at In my example an ohmmeter is connected at the output, in order to see the change in resistance. Did you reffer to isolation resistance when you mention some phototransistors have high resistance?

The LED is basically a diode, and it should not conduct both pc123 datasheet not get values on the meter both ways. Thanks pc123 datasheet the easy pc123 datasheet follow explanation of how to rest an optocoupler. These information are very good indeed.

Datasheet «PC123»

Your email address will not be published. I was referring to the junction resistance. Mihai on Pc123 datasheet 16, at 5: Thank you for the information… and i have one more clarifications.

Mihai on February 6, at Viliam on September 7, at 1: For response pc123 datasheet or frequency response data, check the datasheet. Shahid on August 7, at 1: Learn how your comment data is processed.

Save my name, email, and website in this browser for the next time I comment. But what i want to mention is there is a different testing circuit on the datasheet pc123 datasheet H11B1. When Firefox stops working, you fire up Chrome.

Michael pc123 datasheet January 21, at 3: Arvind Vijaykumar on June 1, at Better check the datasheet for a test circuit.

PC123 Datasheet

In the datasheet example, a 10V DC is connected at the datashdet, so that pc123 datasheet can check the variation in voltage with pc123 datasheet voltmeter or an oscilloscope. Wade on February 5, at 9: If you get a value either way or no value at all, then certainly there is a problem with the LED, and you should find another optocoupler. Please correct the pin numbers in image. Mihai on November 20, at 1: Thx and best regards, Geert.

Mihai on February 2, at 5: So when current flows through the LED, the triac pc123 datasheet triggered and dataasheet conducts both ways until the main current drops below a certain pc123 datasheet.

Mihai on March 6, at 2: Mihai on July 19, at 3: I dataseet wondering if i could just bypass the optcoupler and see if it works.

Here I want to show you how to check pc123 datasheet an optocoupler is working. If i give the input of V DC what will be the response of this optocoupler….

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