I am trying to replicate an existing circuit for a quad copter flight control board. It has two SMD LED's fitted but no current limiting resistors are used. I realise that this is very bad design practise but I want to recreate the board exactly as it was sold up until recently. My question is on choosing an LED that has the best chance of survival under these arduous conditions I thought that this one with the following specs might have a decent chance of survival and am just hoping for an educated opinion but not one that involves fitting a resistor.
Forward current 20 Ma
Forward voltage 3.3v
Source voltage 3.3v
This giving a value of a 1 ohm resistor required. Also how crucial is it that the pad size is roughly the same size as the component footprint or is it more a matter of there being full contact .
Thanks
Forward current 20 Ma
Forward voltage 3.3v
Source voltage 3.3v
This giving a value of a 1 ohm resistor required. Also how crucial is it that the pad size is roughly the same size as the component footprint or is it more a matter of there being full contact .
Thanks
Attachments
-
295.8 KB Views: 0
Last edited: