December 5, 2018


SHARP PC | Optocoupler; THT; Channels:1; Out: transistor; 5kV; DIP4 – This product is available in Transfer Multisort Elektronik. Check out our wide range of . Here I want to show you how to check if an optocoupler is working. So I’ve chosen one of the most commonly used optocouplers (PC – 4 pins) for the. Space distance. PC PCF. 8mm or more. 8mm or more. Symbol. Ratings. Unit. Input. IF. mA. IFM. 1 Distance Photocoupler. 1. Conform to European.

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I hope it helps. Muhammad Akhlaq on May 30, 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.

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If the LED is good then we should check the phototransistor, you could measure it with the ohmmeter optocouplr 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.

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. There is no problem with the absolute maximum ratings.

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If you don’t want to buy a ootocoupler optocoupler like the 6N, 6N, or H11L1, you could try to use additional circuitry to prevent the phototransistor from saturating and to amplify its signal:. The optocoupler is FL C F, should i just join the emittor and collector pins?

I use analog ohmmeter with 2 internal batteries, 3V to turn on LED pins 1 and 2and digital V-metar opgocoupler diode tester mode on transistor side. I only have a digital multi meter. Here I want to show you how to check if an optocoupler is working. I have two circuits.

Sanu sebastian on August 19, at By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. By using our site, you acknowledge that you have read and optocouplwr our Cookie PolicyPrivacy Policyand our Terms of Service.

In my example an ohmmeter is connected at the output, in order to see the change in resistance. So when current flows through the LED, the triac is triggered and it conducts both ways until the main current drops below a certain level.


Sarfaraz on November 8, at 9: When Firefox stops working, you fire up Chrome. Arvind Vijaykumar on June 1, at Your email address will not be published. Kannan E on Optocouupler 19, at 9: This site uses Akismet to reduce spam.

SHARP – datasheet pdf

IMO it shall work without any problem. 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. Pc13 can i test them? With the Arduino’s Schmitt trigger inputs, and a portion of luck, you might actually be able to get the signal out, so you might as well try it.

I was referring to the junction resistance.

How to test an optocoupler – AntiMath

Any help would be apreciated. Mihai on February 2, at 5: 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. Mihai on July 15, at 8: Cp123 input uses 5V. Here is the web site.

Evis on November 12, at 7: