I Icadj New Member Dec 9, 2011 #1 I was given a few years ago a packet of aprox 50 LED's and thought I would use them BUT the note with them sayz "blue 3mm 3v3 .048w" Can anyone please tell me what they are and how to calculate what mA they are Cheers Steve
I was given a few years ago a packet of aprox 50 LED's and thought I would use them BUT the note with them sayz "blue 3mm 3v3 .048w" Can anyone please tell me what they are and how to calculate what mA they are Cheers Steve
alec_t Well-Known Member Most Helpful Member Dec 9, 2011 #2 They're blue LEDs, 3mm diameter, with a 3.3V voltage across them when passing current. The maximum current allowed is .048/3.3 = 0.014A = 14mA. Last edited: Dec 9, 2011
They're blue LEDs, 3mm diameter, with a 3.3V voltage across them when passing current. The maximum current allowed is .048/3.3 = 0.014A = 14mA.
I Icadj New Member Dec 9, 2011 #3 Thanks for the reply WOW thats low when you consider what some are off the shelf So 3v0 blue LED at .06w would be .06/3 = .02 = 20mA (hopefully) Cheers steve
Thanks for the reply WOW thats low when you consider what some are off the shelf So 3v0 blue LED at .06w would be .06/3 = .02 = 20mA (hopefully) Cheers steve
More Coffee Member Dec 9, 2011 #4 Heres a handy little app and a link that should help you out https://www.electronics2000.co.uk/ and