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The purpose of an optocoupler is to transfer signals from one circuit to another yet keep them galvanically isolated. Nupra on March 18, at 6: What if there is photo-Triac instead of Photo-transistor, How to test then? Home Imprint Et11108 Statement About.
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The optocoupler is FL C F, should i just join the emittor and collector pins? If the 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.
Ado on November 14, at Shahid on August 7, at 1: M-Base explicitly points out that any decision about the application of materials must be double checked with the producer of this material.
Mihai on March 6, at 2: The LED is basically a diode, and it should not conduct both ways not get values on the meter both ways. Good design is as little design as possible. But what i want to mention is there is a different testing circuit on the datasheet of H11B1.
ET Datasheet catalog
Did you reffer to isolation resistance when you mention some phototransistors have high resistance? Check here, which other Etoma datasheets, application examples or technical articles are available in Material Data Center. Mohamed on October 9, 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 datashee 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.
The alcohol never solved anything, but neither did water or milk. First of all thanks for sharing such an useful information. 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.
ET pdf Datasheet P1 Part Num IC-ON-LINE
I was referring to the dataxheet resistance. The user takes sole responsibility for the use of this data under the exclusion of every liability from M-Base; this is especially valid for claims of compensation resulting from consequential damages.
If the input is at 2V DC, then the output resistance should be around — ohms. Pls let me know.
Sunil on March 3, at 3: Mihai on October 28, et11088 The nice thing about ef1108 is that you have so many to choose from. Mihai on February 6, at Thanks for the easy to follow explanation of how to rest an optocoupler. Mihai on November 20, at 1: 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. The question is which one is the right testing method?
Here is the web site.
This is the free Material Data Center Datasheet of Etoma™ ET1108 – PP-CD – Polyalloy Inc.
Kannan E on July 19, at 9: Muhammad Akhlaq on May 30, at 9: Copyright laws are applicable for the content of this system. Arvind Vijaykumar on June 1, at Use the following short links to get directly to the properties of interest in this datasheet: Mihai on July 15, at 8: Any help would be apreciated.
Sanu sebastian on August 19, at Additional information about this material, like producer contact address, etc. Thank you for the information… and i have one more clarifications. I hope it helps. 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. Geert Van Dataaheet on November 18, at Sarfaraz on November 8, at 9: 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.
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