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General => General Technical Chat => Topic started by: bigjoncoop on March 27, 2023, 08:02:20 am

Title: Selecting a suitable Schottky / Blocking Diode...
Post by: bigjoncoop on March 27, 2023, 08:02:20 am

When using a Schottky diode "ONLY" in reverse bias, is voltage the only rating that's important?

Title: Re: Selecting a suitable Schottky / Blocking Diode...
Post by: PartialDischarge on March 27, 2023, 08:59:25 am

No, the problem with schotkkys is their high leakage current and increasing with temperature, so I'd say they are the worst diode to choose for just "blocking"

Title: Re: Selecting a suitable Schottky / Blocking Diode...
Post by: Peabody on March 27, 2023, 02:16:52 pm

Could you explain what "only in reverse bias" means, or post a drawing?

Title: Re: Selecting a suitable Schottky / Blocking Diode...
Post by: AVGresponding on March 27, 2023, 05:53:52 pm

Quote from: Peabody on March 27, 2023, 02:16:52 pm

Could you explain what "only in reverse bias" means, or post a drawing?

Maybe as a snubber on a relay coil?