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Defining current limiting resistor for Moc3063

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mohammadyou

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Hi
Moc3063 (optoisolator triac driver) datasheet says that peak repetitive surge current for 100us should be limited to 1A.
for the power line ( 220V 50Hz ) how can i measure the quantity of resistor ?

If I use ohm's law, still for the frequency of 50Hz I have 20ms and it's by far more than 100us !!!
 

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