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Adding features does not necessarily increase functionality -- it just makes the manuals thicker.

tech / sci.electronics.design / Re: SiGe power rectifiers

SiGe power rectifiers

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From: jlar...@highland_atwork_technology.com (John Larkin)
Newsgroups: sci.electronics.design
Subject: SiGe power rectifiers
Date: Tue, 26 Apr 2022 13:49:17 -0700
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by: John Larkin - Tue, 26 Apr 2022 20:49 UTC

https://www.digikey.com/en/products/detail/nexperia-usa-inc./PMEG120G20ELPX/12337195

New to me. But they don't seem to be any better than schottkies.

An interesting spec is "reverse recovery time / step recovery"

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

Re: SiGe power rectifiers

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From: pcdhSpam...@electrooptical.net (Phil Hobbs)
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Subject: Re: SiGe power rectifiers
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by: Phil Hobbs - Tue, 26 Apr 2022 21:32 UTC

John Larkin wrote:
> https://www.digikey.com/en/products/detail/nexperia-usa-inc./PMEG120G20ELPX/12337195
>
> New to me. But they don't seem to be any better than schottkies.

Well, 300 pA typical / 30 nA max leakage at 120V, 25 C isn't bad for a
2A diode.

Schottkies would have real trouble with that--the lowest leakage one I
can find immediately is the RB068MM100, whose leakage is 400 nA max @
100V, 25 C.

The forward recovery looks very nice: 685 mV typ at dI/dt = 20A/us.

>
> An interesting spec is "reverse recovery time / step recovery"
>

Yeah, pretty quick for a PN device.

Overall a pretty good one, I think.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

Subject	Author
SiGe power rectifiers	John Larkin
Re: SiGe power rectifiers	Phil Hobbs