Opto Isolator Question

[mark30504]

Hello

Need a bit of opto help

Have a project

5 volts in

24 Volts out

How do I locate the correct opto to handle the 24v DC, small amps out ?

thanks

Mark

 

[hameeds01]

search for the datasheets of 4N25 ,PC817 . just put a voltage divider at the input side

 

[mark30504]

Hello

Thanks

I have done that already and am confused but the infromation given.

**broken link removed**

has a listing of most optos, there are several voltages listed in the .pdf.

I assumed it would be emitter to collector voltage ?

If so, 4n25 is listed at 6V max.

Do you have any personal experiance using these at 24V ?

thanks

 

[Guest]

6 volts in 4n25 is max reverse voltage in light emitting diode , and the collector to emmiter max voltage is VCEO=30V , and reverse VECO = 6V
Greetings
Dragan

 

[mark30504]

Thanks