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Can anyone identify this MOSFET?

P

Paul Burridge

As posted to alt.binaries.electronics.schematics under the same
subject title.

p.
 
P

Paul Burridge

Paul Burridge wrote...

Haha, ROFLOL, show us the other side!

It's an initiative test, Win. I'm taking a leaf out of Jim Thompson's
book. You don't necessarily *need* to see the other side to work out
what it is if you use your mind and think carefully...
That's enough clues for tonight. I'm off to bed!
:->
 
W

Winfield Hill

Paul Burridge wrote...
It's an initiative test, Win. I'm taking a leaf out of Jim Thompson's
book. You don't necessarily *need* to see the other side to work out
what it is if you use your mind and think carefully...
That's enough clues for tonight. I'm off to bed!

Clue, smue. There's no way to definitively identify that FET,
I have dozens of types that look like that from the back. We
could guess, but why bother? OK, OK, is it one of the TO-220
FETs from this list I posted as a suggestion to you last year?

part FET Vds Imax gate dollar
number type case max @25C charge charge stocking
------- -- ----- --- ---- ----- ------ ----------
STE250NS10 N ISOTOP 100V 220A 900nC $21.00 Nu Horizons
IRFP2907 N 247 75V 209A 620nC $6.60 DigiKey
IRF1405 N 220 55V 169A 260nC $3.30 ($1.15 qty 50)
IRL1404 N 220 40V 160A 140nC $4.61 DigiKey
IRF4905 P 220 55V 74A 180nC $1.38 Richardson

I'll waste a few minutes listing some more impressive parts:

IRF2804 N 220 40V 200A 240nC $2.85 Future (qty 50)
IRF2807 N 220 75V 58A 160nC $3.38 Newark

Thanks,
- Win

whill_at_picovolt-dot-com
 
F

Fritz Schlunder

Paul Burridge said:
As posted to alt.binaries.electronics.schematics under the same
subject title.

p.


My money says it might be an FQP85N06. In this former thread:

http://tinyurl.com/2zc8w

I believe you indicated you destroyed one of these parts. Since these are
TO-220 devices, and they are of the right voltage and current capability
that might be found in battlebots, this seems like one possible conclusion.
The other images in the directory appear to relate to battlebots (with the
exception of the female brain which is quite entertaining), and in that
previous thread you appeared to be interested in high current motor control
which could also likely be related to battlebots. The grime on the package
could also be considered as consistent with this theory.
 
W

Winfield Hill

Fritz Schlunder wrote...
My money says it might be an FQP85N06. In this former thread:

http://tinyurl.com/2zc8w

I believe you indicated you destroyed one of these parts. ...

But the pictured part has never been used.

Thanks,
- Win

whill_at_picovolt-dot-com
 
P

Paul Burridge

Clue, smue. There's no way to definitively identify that FET,

You alone might, Win; you alone...
I have dozens of types that look like that from the back. We
could guess, but why bother?

It's an aptitude test! I was so inspired by Jim Thompson's effort that
I decided to formulate my own for those who, whilst being closely in
touch with the newsgroup, know bugger-all about electronics. I felt
Jim's tests were elitist and therefore discriminatory against plebs
like m'self and Genome. There was a need for an informal exam which
yours truly was ideally-suited to set and adjudicate.
OK, OK, is it one of the TO-220

Correct. That is the package...
FETs from this list I posted as a suggestion to you last year?

Oh, sorry. I answered too soon. I guess the answer turns on the speed
of your thinking and your motivation.

Crikey, that's *three* clues in the last sentence alone!
 
P

Paul Burridge

My money says it might be an FQP85N06. In this former thread:

Your perspicacity is amazing!
http://tinyurl.com/2zc8w

I believe you indicated you destroyed one of these parts. Since these are
TO-220 devices, and they are of the right voltage and current capability
that might be found in battlebots, this seems like one possible conclusion.
The other images in the directory appear to relate to battlebots (with the
exception of the female brain which is quite entertaining), and in that
previous thread you appeared to be interested in high current motor control
which could also likely be related to battlebots. The grime on the package
could also be considered as consistent with this theory.

Brilliant!

Bang on, Fritz. I can't believe Win didn't get it first. Well done!
 
P

Paul Burridge

Fritz Schlunder wrote...

But the pictured part has never been used.

I bought six of 'em from Farnell at the time and mentioned that in
passing. This is one of the unused spares. You were *so* close but
should have paid closer attention at the time. :)
 
W

Winfield Hill

Paul Burridge wrote...
I bought six of 'em from Farnell at the time and mentioned that
in passing. This is one of the unused spares. You were *so* close
but should have paid closer attention at the time. :)

Believe me, I was paying NO attention at the time, and very little
at any other time. That's my story, and I'm sticking to it. :>)

Thanks,
- Win

whill_at_picovolt-dot-com
 
P

Paul Burridge

Paul Burridge wrote...

Believe me, I was paying NO attention at the time, and very little
at any other time. That's my story, and I'm sticking to it. :>)

Fairy nuff. Next in this innovative series of tests will be "Can you
identify this diode?" Again, *you* should be best placed to get the
answer - if you've paid attention. Or maybe Fritz will rob you again.
:)
 
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