Voltage question about replacing NES console's LED...

TheOnlyOneHeFears · Post by **TheOnlyOneHeFears** » Thu Jan 25, 2007 11:05 am

I want to replace the NES's red LED with a blue one, and I don't quite understand the voltage requirements etc.
Maplin sell 5mm blue LEDs which seem perfect. They have datasheets, but I guess the important data is the forward voltage and reverse voltage.
I presume that for the indicator LED, the NES produces +5V DC
This LED is rated at 'Forward voltage at If=20mA: 4.0V ', and has a reverse voltage max of 5V
I'm confused as to what is relevant, the forward or the reverse voltage. Here is the page, if it helps
http://www.maplin.co.uk/module.aspx?Tab ... 3&doy=25m1
Would the NES' voltage damage the LED?

Rekarp · Post by **Rekarp** » Thu Jan 25, 2007 11:17 am

All that matter is the Forward voltage and current of the said LED. Red LEDs usually require less voltage and current since red is of a lower energy spectrum then Blue/Violet.

I would assume it would be a straight swap for a Red LED to Blue LED conversion.

LED Mod for NES.