1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: P-N Junction Diode Problem HELP

  1. Apr 27, 2010 #1
    1. The problem statement, all variables and given/known data

    A pn junction diode has saturation current Is= 1e-12 A. What is the current through this diode if a positive voltage 0.68 V is applied to it? (Unit: A)

    2. Relevant equations


    3. The attempt at a solution

    I dont even know where to begin, but i just need a good explanation and how to solve this problem to help me visually learn it. I can't find much info on the web about this problem.

  2. jcsd
  3. Apr 27, 2010 #2


    User Avatar

    You have the value of Is and Vd = 0.68V. The voltage VT is dependent of temperature. It is 26mV at 300 K.
    Do the math.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook