Posted by Tnuctipun [ 64.12.116.14 ] on February 20, 2005 at 10:19:20:

In Reply to: Re: diodes posted by manualblock on February 20, 2005 at 09:52:04:

I think the original app. required a PIV greater than 1kV. Silicon P-N junction diodes add their PIV when rigged in series.

Picture this: increase inverse voltage across your 5408's in series. It builds until it reaches brekdown voltage on one. Current would flow and destroy one, but the second, running at less than breakdown PIV does not allow it to pass. One diode runs at breakdown PIV and the extra is taken across the next one.

Since Schottkey types were nor recommended for this service, I think they must short out in over-voltage failure, and fail in a domino falling scenario.
regards,
Douglas

Replies:

• Re: diodes - manualblock 10:41:13 02/20/05 (1)
  • Bricks for me... - Tnuctipun 12:46:02 02/20/05 (0)