Switching Diode ID required
Gareth Magennis
trying to find equivalents for a Dual Diode T220F package (insulated tab).
Device is marked RF2001, but can't seem to find a datasheet.
It is from a SMPS and 4 of these rectify the output of the switching
transformer to create the final DC voltages.
I'm not much up on SMPS techology - hate repairng the things - should these
be Shottkys, Ultra fast switching or what?
Cheers,
Gareth.
N_Cook
news:O8ednVa0RtE3Ox3Q...@bt.com...
near enough any old generic dual epitaxial I would have thought , V rating
of caps hints at the minimum V rating and then TO220 suggests the A rating .
Just
which polarity the centre connection , and mica and insulators perhaps if
straight TO220
Meat Plow
Schottky diodes are used in many SMPS including but not limited to
chargers (wall wart) adapters and open frame, and PC power supplies.
And are made from various barrier metals and alloys. Some packages
are TO220, TO126, TO247,DO41, DO15 etc...
--
Live Fast Die Young, Leave A Pretty Corpse
whit3rd
200V and 1A ratings, but that's only a guess. Can you
make out any manufacturer markings other
than that number?
Also, what is the connection? This is probably for an output that is
clearly specified in current rating and output voltage on the
power-supply nameplate.
It might be necessary to use an uninsulated replacement part, with
insulation parts added.
Phil Allison
"Gareth Magennis"
>
> trying to find equivalents for a Dual Diode T220F package (insulated tab).
> Device is marked RF2001, but can't seem to find a datasheet.
** You did not look very hard - using " rf2001 diode " the pdf below is the
third hit.
It is NOT in fact a dual diode - dumbass.
http://www.rohm.com/products/databook/di/pdf/rf2001t4s.pdf
.... Phil
William Sommerwerck
You are confusing the poster with a famous French writer. Two, actually --
pere et fils.
Phil Allison
"William Sommerwanker"
>> It is NOT in fact a dual diode -- dumbass.
>
> You are confusing the poster with a famous French writer.
** Somebody once made a bunch of money from a song that declared:
" Pablo Picasso was not an asshole "
So, maybe there is a buck to be made from one that says:
" Alexandre Dumas was not a dumbass "
Wadaya think ??
... Phil
Gareth Magennis
"Phil Allison" <phi...@tpg.com.au> wrote in message
news:8ud0gl...@mid.individual.net...
Thanks Phil, don't know why I wasn't able to find that, I tried twice you
know, honest.
Actually these ARE dual diodes. On further Googling for the ROHM devices,
it turns out there are 3 different types: RF2001 T2D, T3D, and the T4S you
linked to here. The T2D and T3D are both dual devices, one the opposite
polarity of the other, and the T4S as we can see is a single diode.
(My devices are actually marked on the second line T2D, I thought this was
just a date code or something).
Cheers,
Gareth.
Gareth Magennis
Oh, and I know you like to know these things, so this is the damn amp in
question:
http://www.markbass.it/product_detail.php?id=69
Gareth.
Phil Allison
"Gareth Magennis"
>
> Oh, and I know you like to know these things, so this is the damn amp in
> question:
>
> http://www.markbass.it/product_detail.php?id=69
** Seen a few of these POS with regular iron PSUs.
Look like something built is a Bronx garage by frightened wet backs.
Awful.
.... Phil
William Sommerwerck
>> You are confusing the poster with a famous French writer.
> ** Somebody once made a bunch of money from a song
> that declared: > " Pablo Picasso was not an asshole "
> So, maybe there is a buck to be made from one that says:
> " Alexandre Dumas was not a dumbass "
> Wadaya think...??
You got the joke. That's all I care about.
Phil Allison
"William Sommerwanker"
>
>>>> It is NOT in fact a dual diode -- dumbass.
>
>>> You are confusing the poster with a famous French writer.
>
>> ** Somebody once made a bunch of money from a song
>> that declared:
>
>
>> So, maybe there is a buck to be made from one that says:
>
>> " Alexandre Dumas was not a dumbass "
>
>> Wadaya think...??
>
> You got the joke.
** Shame it totally lacked any kind of humour.
And you are still a revolting pile of autistic, sub human shit.
God, I hope you die in screaming agony.
... Phil
William Sommerwerck
>> You got the joke.
> Shame it totally lacked any kind of humour.
Isn't a lack of humour [sic] a form of humor in and of itself?
> And you are still a revolting pile of autistic, sub-human
> shit. God, I hope you die in screaming agony.
Please -- I can't handle flattery.
If you saw and heard my magnificent AV system (KURO, Apogee, Curl) you would
not be so quick to criticize. You would be begging to visit.
Phil Allison
"William Sommerwanker is aCunt "
>
** Shame it totally lacked any kind of humour.
And you are still a revolting pile of autistic, sub human shit.
God, I hope you die in screaming agony.
... Phil