Electronic Manufacturer, Part no, Datasheet, Electronics Description. NEC, PSD-1, DIP PHOTOCOUPLER OPERATING AMBIENT TEMPERATURE °C. The description of this item has been automatically translated. If you have any questions, please feel free to contact us. Optocoupler D. NEW AND. D datasheet, cross reference, circuit and application notes in pdf format. Abstract: nec D photocoupler PSDL-1 PSDL-1Y-V-A D .

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10PCS Free shipping R2561D R 2561D DIP4 new 1 Optocoupler

Did you reffer to isolation resistance when you mention some phototransistors have high resistance? These information are optocoupper good indeed. Leave a Reply Cancel reply Your email address will not be published. First of all thanks for sharing such an useful information. If i give the input of V DC what will be the response of this optocoupler….

I hope it helps. You have JavaScript disabled or are viewing the site oltocoupler a device that does no support JavaScript. I only have a digital multi meter. The purpose of an optocoupler is to transfer signals from one circuit to another yet keep them galvanically isolated. Mihai on March 18, at Shahid on August 7, at 1: Mihai on March 6, at 2: 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.


Nupra on March 18, at 6: Hi, First of optocoupker thanks for sharing such an useful information. Thank you for the information… and i have one more clarifications.

The optocoupler is FL C F, should i just join the emittor and collector pins? Evis on November 12, at 7: Arvind Vijaykumar on June 1, at It depends on the 2nd circuit you are supplying the voltage on collector of the optocoupler, optocoupler will never transfer the voltages of circuit1 to circuit2, it decreases resistance between your supplied voltages at collector and emitter on the input of circuit2.

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.

In my example an ohmmeter is connected at the output, in order to see optlcoupler change in resistance. The LED is basically a diode, and it should not conduct both ways not get values on the meter both ways.

Geert Van Droogenbroeck on November 18, at Mihai on July 15, at 8: Viliam on September 7, at 1: Ado on November 14, at I guess, it should work mostly the same as a normal triac. Hi, The MOC, is a phototriac coupler, meaning that instead of the phototransistor, it has a phototriac, which is optocuopler a triac with the gate driven by the LED.

I have two circuits.

D Datasheet, PDF – Alldatasheet

Learn how your comment data is processed. Thx and best regards, Geert. Wade on February 5, at 9: Sarfaraz on November 8, at 9: If optocopler 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.


With no voltage applied to the LED pins 1 and 2and with an open base optociupler 6there should be a high resistance between pins 5 and 4. Better check the datasheet for a test circuit. When Firefox stops working, you fire up Chrome.

Sanu sebastian on August 19, at I like the way you explain things. Mihai on June 10, at I appriciate… I optocooupler that emprical method for H11B1 optocoupler. There is no law governing all things.

Mihai on February 6, at This site uses Akismet to reduce spam. Mohamed on October 9, at 9: Mihai on November 20, at 1: You helped me understand how to use a tester optocoipler a optocoupler Thanks.

Here I want to show you how to check if an optocoupler is working. Mihai on July 19, optocopuler 3: Kannan E on July 19, at 9: What if there is photo-Triac instead of Photo-transistor, How to test then? Muhammad Akhlaq on May optocojpler, at 9: The nice thing about standards is that you have so many to choose from.

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.

Thank you for the information.