Yes, and no. When trying to identify the cathode and anode end of a high voltage diode, the meter has to have enough voltage to overcome the forward voltage drop, Vf, of the device under test. We use a test setup that includes a 30V current limited power supply. When testing for polarity, the current should be limited to mA going through the diode when it is connected in the forward direction.
I am trying to determine the polarity of a high voltage diode. My Fluke meter shows an open circuit in both directions for the 10KV Z100UFG diode. Is that normal?
by kaci@dmiagency.com | Jul 3, 2018 | 0 comments