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75332P MOSFET drain connected to which battery terminal?

J

John Doe

Jan 1, 1970
0
I have a 75332P MOSFET on a cordless drill controller heatsink. I
guess it's part of a pulse width modulator. The drain (flange)
connects directly to one of the battery terminals.

Does the MOSFET drain go directly to the battery minus/ground
terminal? Or does it go to the battery plus terminal?

Thanks.
 
P

Phil Allison

Jan 1, 1970
0
"John Doe"
I have a 75332P MOSFET on a cordless drill controller heatsink. I
guess it's part of a pulse width modulator. The drain (flange)
connects directly to one of the battery terminals.

Does the MOSFET drain go directly to the battery minus/ground
terminal? Or does it go to the battery plus terminal?

** Not enough info.

Surely you can trace the wiring.


..... Phil
 
T

Tim Williams

Jan 1, 1970
0
Tab is always drain, but which polarity depends on N or P channel.

Tim
 
P

Phil Allison

Jan 1, 1970
0
"Tim Williams"

Tab is always drain, but which polarity depends on N or P channel.


** Some power MOSFETS have the source on the tab.

In TO3, TO3P, TO220 etc



.... Phil
 
J

Jasen Betts

Jan 1, 1970
0
I have a 75332P MOSFET on a cordless drill controller heatsink. I
guess it's part of a pulse width modulator. The drain (flange)
connects directly to one of the battery terminals.

Does the MOSFET drain go directly to the battery minus/ground
terminal? Or does it go to the battery plus terminal?


HUFA75332P3 is a 60A 55V N-channel MOSFET.

N-channnel mosfets are used as switches with the drain more positive than
the source terminal.

So unless that mosfet is part of an electronic brake, or reverse
polarity blocking system that terminal goes to the battery positive.

http://html.alldatasheet.com/html-pdf/52898/FAIRCHILD/HUFA75332P3/410/1/HUFA75332P3.html
 
P

Phil Allison

Jan 1, 1970
0
"Jasen Betts" <[email protected]>


** **** of you sheep shagging **** .
N-channnel mosfets are used as switches with the drain more positive than
the source terminal.

So unless that mosfet is part of an electronic brake, or reverse
polarity blocking system that terminal goes to the battery positive.


** 10,000% WRONG.

You fucking, tenth witted, autistic POS.



.... Phil
 
T

Tim Williams

Jan 1, 1970
0
Only RF FETs. Rarely encountered in those packages because the lead
inductance really sucks. They occupy that small margin between audio
frequency and switching FETs and proper RF FETs with microstrip leads, and
usually stud mount heatsinking.

Tim
 
P

Phil Allison

Jan 1, 1970
0
"Tim Williams"

** FFS do NOT top post !!!!!!
Only RF FETs. Rarely encountered in those packages because the lead
inductance really sucks. They occupy that small margin between audio
frequency and switching FETs and proper RF FETs with microstrip leads, and
usually stud mount heatsinking.


** Lateral power mosfets, made by Hitachi, Renesas and Magnatec / Semelab /
Exicon all have the case or tab as the drain.

Egs 2SK176, BUZ900, BUZ900P, 2SK226 ....



..... Phil
 
P

Phil Allison

Jan 1, 1970
0
"Phil Allison"

** Corection:

Lateral power mosfets, made by Hitachi, Renesas and Magnatec / Semelab /
Exicon all have the case or tab as the SOURCE.

Egs 2SK176, BUZ900, BUZ900P, 2SK226 ....


.... Phil
 
P

Phil Allison

Jan 1, 1970
0
"Chiron"


** Only ignorant pigs top post.

Like you.



..... Phil
 
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