If you use the conventional series resistor to adjust the current, it
won't matter.  998 volts will be dropped across the resistor to get the
proper current through the LED.  The voltage rating of the resistor will
need to be considered.

If you use a constant current source, with a maximum voltage of 1000
volts...it still won't matter!  The constant current source will adjust
its voltage until 1 mA flows....which will be the forward voltage of the
LED.

Jon



> People say current kills. So what happens if you push 1 mA through an
> LED @ 1000 V? Will the LED blow?
>
> -- [ solarwind ] -- http://solar-blogg.blogspot.com/
> --


-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist