How to compare reverse recovery time between diodes in different test conditions?

Thread Starter

NicksonYap

Joined Jan 13, 2013
2
Edit:
I think I put this thread in the wrong category...

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Wassup, newbie here :D
This looks like a very nice forum! I've checked on some of the allaboutcircuits.com lessons and they're really informative! :D

Okay...

If I were to compare the trr between 1N4148, UF5408, 1N3595.
I'm not specifically trying to compare those two diodes, but just as an example.
I chose those because they seem to have very different test conditions.

1N4148 (http://www.futurlec.com/Datasheet/Diodes…
Test condition:
when switched from IF = 10 mA to
IR = 60 mA; RL = 100 Ω;
measured at IR = 1 mA

Results: 4ns


UF5408 (http://www.futurlec.com/Datasheet/Diodes…
Test condition:
IF = 0.5 A,
IR = 1.0 A,
Irr = 0.25 A

Results: 75ns


1N3595 (http://www.fairchildsemi.com/ds/1N/1N359…
Test condition:
IF = 10 mA,
VR = 3.5,
RL = 1.0 kΩ

Results: 3µs


So, perhaps I can get a value that is relative like reverse recovery speed?
I'm still very new to this...
Can also explain what is IF, IR, Irr, RL, and VR?

Thank you very much! :D
 
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