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No more high voltage PNP transistors?

08/12/2015 - 22:25 von Joerg | Report spam
Folks,

When looking for small-signal high voltage PNP I was disappointed.
Nothing available above 500V anymore and ideally I need north of 1kV at
less than 2mA. I know the old CRT TV sets are gone for good but isn't
there some specialty company that still makes such high voltage transistor?

In the normal range the FMMT560 at 500V and the STN9360 at 600 seem to
be the end of the rope. Where the STN is officially listed for switching
and I need linear but that may be ok.

For NPN and FETs it doesn't look a whole lot better and they'd not be
well suited in this case.

There is always the option to cascade but that gets old when there are
multiple strings needed.

Regards, Joerg

http://www.analogconsultants.com/
 

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#1 Joerg
08/12/2015 - 22:36 | Warnen spam
Bitte untertaenigst um Vergebung, das sollte in s.e.design landen. Aber
wenn jemand eine (nicht-antiquarische) Quelle fuer PNP
Kleinsignaltransistoren ueber 600V kennt, waere das natuerlich sehr
schoen. Zuviele Bohnenstangen im Schaltbild sehen irgendwie blaeh aus.

Schoene Gruesse, Joerg


On 2015-12-08 13:25, Joerg wrote:
Folks,

When looking for small-signal high voltage PNP I was disappointed.
Nothing available above 500V anymore and ideally I need north of 1kV at
less than 2mA. I know the old CRT TV sets are gone for good but isn't
there some specialty company that still makes such high voltage transistor?

In the normal range the FMMT560 at 500V and the STN9360 at 600 seem to
be the end of the rope. Where the STN is officially listed for switching
and I need linear but that may be ok.

For NPN and FETs it doesn't look a whole lot better and they'd not be
well suited in this case.

There is always the option to cascade but that gets old when there are
multiple strings needed.

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