Photocoupler s Features. 1. Current transfer ratio PC Anode mark. PC Internal connection diagram. PC PC PC PC PC PC 1. Notice The content of data sheet is subject to change without prior notice. In the absence PCXNNSZ0F Series contains an IRED optically Photocoupler. Dual-in-line package: LTV 1-channel type. LTV 2-channel type. LTV- 4-channel type. * Wide lead spacing package: LTVM: 1-channel type.

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The purpose of an optocoupler is to transfer signals from one circuit to another yet keep them galvanically isolated. 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.

Hi, First of all thanks for sharing such an useful information. But optocouplet the Logic input is made high, this high voltage should be a minimum of 1. Step 2 If oprocoupler 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.

PC IC Pinout, Features, Equivalent & Datasheet

Hi, The MOC, is a phototriac coupler, meaning that instead optocupler the phototransistor, it has a phototriac, which is basically a triac with the gate driven by the LED.


Kannan E on July 19, at 9: Any help would be apreciated. Nupra on March 18, at 6: Michael on January 21, at 3: Evis on November 12, at 7: In the datasheet example, a 10V DC is connected at the output, so that one can check the variation in voltage with a voltmeter or an oscilloscope.

I was wondering if i could just bypass the optcoupler and see if it works.

PC817 (EL817)

I guess, it should work mostly the same as a normal triac. Using the PC IC is pretty optocouplet straight forward, we just have to connect the anode pin of the IR LED pin 1 to the logic input which has to be isolated and the cathode pin 2 of the IR led to the ground.

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. The LED is basically a diode, and it should not conduct both ways not get values on the meter both ways. The digital signal given to the IR LED will be reflected on the transistor but there will be no hard electrical connection between the two. Here Opticoupler want to show you how to datasjeet if an optocoupler is working.


There pull-up resistor 1K acts as a load resistor. I like the way you explain things. Mihai on July 15, at 8: Mihai on June 10, at How can i test them?

What if there is photo-Triac instead of Photo-transistor, How to test then? Your email address will not be published. Mihai on July 19, at dataseet Better check the datasheet for a test circuit.

How to test an optocoupler – AntiMath

Blumen on October 26, at 7: You have JavaScript disabled or are viewing the site on a device that does no support JavaScript. If i give the input of V DC what will be the response of this optocoupler…. I hope it helps. Here is the web site.

The nice thing about standards is that you have so many to choose from.

Learn how your comment data is processed. This comes in very handy when you are trying to isolate a noisy signal from your digital electronics, so if you are looking for an IC to eatasheet optical isolation in your circuit design then this IC might be the right choice for you. Leave a Reply Cancel reply Your email address will not be published.