Unknown (to me) symbol

[Buk]

What is this?

 

[MaxHeadRoom78]

Mosfet semiconductor.
Metal–oxide–semiconductor field-effect transistor.

 

[Buk]

P or N?

 

[Externet]

Not P nor N, it is type WS = wrong symbol.

----> https://www.electrical-symbols.com/electric-electronic-symbols/transistor-mosfet-symbols.htm

 

[MaxHeadRoom78]

P or N?

Is it a symbol only you came across, or is it depicted in a circuit where you could tell it's gender!

 

[danadak]

Basic info on MOSFETs -

MOSFET - Basics of MOSFET, Operation, Types, Applications, FAQs

Metal Oxide Silicon Field Effect Transistors commonly known as MOSFETs are electronic devices that are used to switch or amplify voltages in circuits. It is a current controlled device and is constructed by three terminals.

byjus.com

FET Principles And Circuits — Part 1

Nuts & Volts Magazine is written for the hands-on electronics hobbyist, design engineer, technician, and experimenter.

www.nutsvolts.com

Regards, Dana.

 

[ClydeCrashKop]

 

[MacIntoshCZ]

Its same symbol like this (but on this image its just zoomed out)

 

[unclejed613]

Its same symbol like this (but on this image its just zoomed out)

white cat in a snowstorm?

 

[Buk]

So, none of

.

.

.

.

know either.

Indeed, no responder has identified the symbol; because it it not the same as any of the mosfet symbols linked, or those I had alredy looked at:

It vaguely resembles many of them, but isn't any of them. Which is why I asked.

Dontcha just hated it when sarcasm backfires.

 

[Buk]

Nor does it look exactly like any of these:

Nor these:

Nor these:

In fact, it doesn't match ANY symbol on ANY of these pages of symbols:

And I'd already checked that lot BEFORE posting.

 

[unclejed613]

the problem is, it's not marked for polarity... it's neither N-channel, or P-channel... it's either a printing error, or it's something that doesn't exist. the dot showing the connection between the source and bulk is actually fairly commonly shown in print.

 

[Buk]

the problem is, it's not marked for polarity... it's neither N-channel, or P-channel... it's either a printing error, or it's something that doesn't exist. the dot showing the connection between the source and bulk is actually fairly commonly shown in print.

Yes. The same symbol is used in a whole bunch of different circuit (pseudo) schematics that I'm looking at; hence I didn't want to post a complete circuit as I don't want the discussion to be about any particular circuit.

I think the only interpretation is "a generic mosfet suitable for your specs for a circuit of this type".

Which is fair enough, but as I'd never seen half of the variations of mosfet symbols (enhanced bulk ujt etc.), I thought it worth asking just in case it was some obscure, but clearly defined animal.

 

[MacIntoshCZ]

white cat in a snowstorm?

Actually its white cat hidden in white box during snowstorm.

 

[MacIntoshCZ]

Nor does it look exactly like any of these:
View attachment 134127

Nor these:
View attachment 134128
Nor these:
View attachment 134129
In fact, it doesn't match ANY symbol on ANY of these pages of symbols:
View attachment 134131
And I'd already checked that lot BEFORE posting.

Sorry for sarcasm. Maybe i have seen that symbol in some book. EU book. But no, i do not remember where-

 

[ClydeCrashKop]

I think it is some wise guy trying to coin a new symbol for a MOSFET. Using what looks like a pipe fitting to join two lines and thinks he doesn’t have to show polarity.
If it was obvious, you wouldn’t have to ask “What is this?”
Since you can’t find it on any chart or reference, that tells me it is not official.
It is like people making up their own acronyms or using new ones without defining them and expecting us to know what they are talking about. When they use them in a thread title, I just scroll on.

 

[Buk]

I think it is some wise guy

The "wise guy" is

Prof. Dr. Heinz Schmidt-Walter (HS Darmstadt, Hessen)​

Author of https://www.amazon.co.uk/Taschenbuch-Elektrotechnik-Ralf-Rüdiger-Kories/dp/3808558652/

and https://gftn.h-da.de/forschung/zwei-pilotprojekte-fuer-brennstoffzellenheizgeraete

 

[MacIntoshCZ]

The "wise guy" is

Prof. Dr. Heinz Schmidt-Walter (HS Darmstadt, Hessen)​

Author of https://www.amazon.co.uk/Taschenbuch-Elektrotechnik-Ralf-Rüdiger-Kories/dp/3808558652/

and https://gftn.h-da.de/forschung/zwei-pilotprojekte-fuer-brennstoffzellenheizgeraete

On my hand writed schematics i am using just T placed inside circle for transistor, i am to lazy to draw it corectly.
You can call me "lazy guy" =)

 

[ClydeCrashKop]

Why don’t you ask Prof. Dr. Heinz Schmidt-Walter (HS Darmstadt, Hessen)
why he is using unauthorized, unofficial MOSFET symbols, if that is what they are?
Ask him if it is P or N.

 

[ClydeCrashKop]

Does he use pipe tees and other plumbing fixtures to make connections in the rest of that schematic?