Can someone help me understand something, Trying to get the following Opto Switch working:
I see the Operating Supply Voltage is 4.5-12vdc, but it says the forward voltage is 1.2v 15ma, Is the forward voltage the Emitter Led Voltage and the 4-12vdc is the reciever side?
And if the led voltage is 1.2 volts would a 700ohm resister be correct to bring 12volt down to the 1.2v with around 15ma?
Thanks for any assistance, I am an electronics n00b.
Last edited by mjarus; 05-02-2006 at 11:58 PM.
It looks like the forward current for the LED is 15ma so you could probabally use a 1k resistor for the LED on 12v.
The output is open collector at 50ma.
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Ooops, Al is right. I deleted my original post as I didn't read the whole post closely and thought you were just trying to get 1.2V from 12V @15ma. My bad.