Today's Message Index:
----------------------
1. 09:09 AM - Power Duece Schottky diodes (Randy C-GRPY)
2. 09:09 AM - Re: SPAM on Matronics (Richard Girard)
3. 10:11 AM - Re: Power Duece Schottky diodes (Charlie England)
4. 10:32 AM - Re: Power Duece Schottky diodes (Jeff Luckey)
5. 10:35 AM - Re: SPAM on Matronics (Charlie England)
6. 11:02 AM - Re: Power Duece Schottky diodes (Randy C-GRPY)
7. 11:39 AM - Re: Power Duece Schottky diodes (Randy C-GRPY)
8. 11:45 AM - Re: Power Duece Schottky diodes (Tim Olson)
9. 11:53 AM - Re: Re: Power Duece Schottky diodes (Charlie England)
10. 12:51 PM - Re: Re: Power Duece Schottky diodes (Jeff Luckey)
11. 12:54 PM - Re: Power Duece Schottky diodes (user9253)
12. 02:41 PM - Re: Re: Power Duece Schottky diodes (Charles Kuss)
13. 03:07 PM - Re: Power Duece Schottky diodes (Randy C-GRPY)
14. 04:33 PM - Re: Power Duece Schottky diodes (user9253)
15. 04:46 PM - Re: Power Duece Schottky diodes (johnbright)
16. 05:18 PM - Re: SPAM on Matronics (user9253)
17. 08:09 PM - mystery relay (johnbright)
18. 09:19 PM - Re: Power Duece Schottky diodes (Randy C-GRPY)
Message 1
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| Subject: | Power Duece Schottky diodes |
I want dual diodes to feed alternate power to critical components with only one
power input. The ones sold by Perihelion Designs seem to fit the bill well but
are quite pricey. Are they worth the cost or are there equally good, cheaper
solutions to be considered?
Thanks
Randy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494939#494939
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| Subject: | Re: SPAM on Matronics |
Charlie, I've always been afraid to delete spurious posts right out of the
spam folder for fear it would start declaring real posts as spam (which
happens occasionally anyway) You've given me hope that I can find a way to
make it more reliable. Thanks
Rick
On Fri, Feb 21, 2020 at 12:15 PM Charlie England <ceengland7@gmail.com>
wrote:
> ceengland7@gmail.com>
>
> On 2/21/2020 8:53 AM, user9253 wrote:
> >
> > I tried emailing Matt several times about spam on the AeroElectric List
> > and other Matronics lists, but he has not responded.
> > Maybe he will see this thread. Or maybe Bob N can contact Matt.
> > I believe that a single person or company is using several aliases
> listed below.
> > The spammer can be sneaky, inserting aviation related material to make
> his or her post appear to be legitimate.
> > -
> > Matt,
> > The following threads are spam and need to be deleted:
> >
> > http://forums.matronics.com/viewtopic.php?t=18994
> > http://forums.matronics.com/viewtopic.php?t=29971
> > http://forums.matronics.com/viewtopic.php?t=36956
> > http://forums.matronics.com/viewtopic.php?t=45261
> > http://forums.matronics.com/viewtopic.php?t=64853
> > http://forums.matronics.com/viewtopic.php?t=16765515
> > http://forums.matronics.com/viewtopic.php?t=16768494
> > http://forums.matronics.com/viewtopic.php?t=16768495
> > http://forums.matronics.com/viewtopic.php?t=16768496
> > http://forums.matronics.com/viewtopic.php?t=16768497
> > http://forums.matronics.com/viewtopic.php?t=16768497
> > http://forums.matronics.com/viewtopic.php?t=16768498
> > http://forums.matronics.com/viewtopic.php?t=16770512
> > http://forums.matronics.com/viewtopic.php?t=16771914
> > http://forums.matronics.com/viewtopic.php?t=16772546
> > http://forums.matronics.com/viewtopic.php?t=16772753
> > http://forums.matronics.com/viewtopic.php?t=16773485
> > http://forums.matronics.com/viewtopic.php?t=16774897
> > http://forums.matronics.com/viewtopic.php?t=16774932
> > http://forums.matronics.com/viewtopic.php?t=16774950
> > http://forums.matronics.com/viewtopic.php?t=16774980
> > http://forums.matronics.com/viewtopic.php?t=16775011
> > http://forums.matronics.com/viewtopic.php?t=16775052
> >
> > Please delete the following spammers who posted on the above threads:
> >
> > AdilahBisar
> > Cameron Field
> > Isaac
> > jameslara
> > johnmathew
> > KatoGilliam
> > KennethAmpbell
> > MichealRobert
> > pallaviparker
> > stephen092
> > Verolla
> > Whiteleg
> > alisondaewon
> > fengqingxue
> > Jess
> > sofia_bow1994
> > tomarc365
> > tripathiankush
> >
> > --------
> > Joe Gores
> >
> Spam is such a minor issue on the Matronics lists that I just tell my
> email application to mark them as spam & move on. I use Thunderbird on
> Windows7, BlueMail on my android phone, and Gmail's native web interface
> if I'm on another computer. All will allow blocking spam, through
> Gmail's 'smart' spam filtering. It can learn to block individual
> senders, even if they come through an email portal like the Matronics
> email lists.
>
> Can't offer any advice on the forum format, since I don't use it.
>
> Charlie
===========
===========
===========
===========
===========
===========
>
>
--
=9CBlessed are the cracked, for they shall let in the light.=9D
Groucho Marx
<http://www.goodreads.com/author/show/43244.Groucho_Marx>
Message 3
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| Subject: | Re: Power Duece Schottky diodes |
On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY <rpulis@shaw.ca> wrote:
>
> I want dual diodes to feed alternate power to critical components with
> only one power input. The ones sold by Perihelion Designs seem to fit the
> bill well but are quite pricey. Are they worth the cost or are there
> equally good, cheaper solutions to be considered?
>
> Thanks
> Randy
>
>
There are hundreds of choices on ebay, at prices all over the map (even for
the same device). ex: The stps12045tv is a dual 60A 45V device with an
electrically isolated base (simpler mounting) that can be found for as much
as $75, or as little as 2 for $12, if you're willing to wait a few weeks
for them to arrive from China. Mouser (major electronics supplier) has them
for $20. If you spend more time searching, you might find some even
cheaper; I did several months ago.
If you don't need that much current, you can get a whole bag of them for
less than $10 in some cases. Do exercise caution when mounting any metal
tabbed device, to be sure the tab isn't electrically common to one of the
leads. When browsing, just look for voltage above ~20V, at whatever current
you need. Remember that current ratings assume significant heat sinking; if
you want to avoid mounting on a heat sink, just oversize the device
significantly for the job. A legit heat sink will probably cost a lot more
than upsizing the device. :-)
https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps12045tv
Message 4
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| Subject: | Re: Power Duece Schottky diodes |
Randy,
See if this meets your specs...
https://www.mouser.com/productdetail/stmicroelectronics/stth10002tv1?qs=C
ak7mXXNf1WSROaFc2i88g%3D%3D
I'm using them to isolate my main buss in my RV-7.
-Jeff
On Saturday, February 22, 2020, 10:22:16 AM PST, Charlie England <ceeng
land7@gmail.com> wrote:
On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY <rpulis@shaw.ca> wrote:
I want dual diodes to feed alternate power to critical components with only
one power input.=C2- The ones sold by Perihelion Designs seem to fit the
bill well but are quite pricey. Are they worth the cost or are there equal
ly good, cheaper solutions to be considered?
Thanks
Randy
There are hundreds of choices on ebay, at prices all over the map (even for
the same device). ex: The stps12045tv is a dual 60A 45V device with an ele
ctrically isolated base (simpler mounting) that can be found for as much as
$75, or as little as 2 for $12, if you're willing to wait a few weeks for
them to arrive from China. Mouser (major electronics supplier) has them for
$20. If you spend more time searching, you might find some even cheaper; I
did several months ago.
If you don't need that much current, you can get a whole bag of them for le
ss than $10 in some cases. Do exercise caution when mounting any metal tabb
ed device, to be sure the tab isn't electrically common to one of the leads
. When browsing, just look for voltage above ~20V, at whatever current you
need. Remember that current ratings assume significant heat sinking; if you
want to avoid mounting on a heat sink, just oversize the device significan
tly for the job. A legit heat sink will probably cost a lot more than upsiz
ing the device. :-)https://www.ebay.com/sch/i.html?_from=R40&_trksid=m5
70.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0
&_odkw=stps12045tv
Message 5
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| Subject: | Re: SPAM on Matronics |
I never (or rarely) bother to delete spam out of the spam folder. Gmail
automatically deletes spam from the folder after 30 days. The spam
'detecter' is also supposed to be capable of learning, so if you check
your spam folder every week or so, and move any known-good emails back
to the inbox (mark as 'not-spam' or 'not-junk') it will adjust to your
preferences.
I do occasionally find known-good emails in my spam folder, and
sometimes they're from a Matronics list. They usually have a subject
line that might look suspicious to a non-aviation or non-technical
'thinker'. Moving them to the inbox almost always results in gmail
treating the sender or subject as OK after that.
FWIW,
Charlie
On 2/22/2020 11:06 AM, Richard Girard wrote:
> Charlie, I've always been afraid to delete spurious posts right out of
> the spam folder for fear it would start declaring real posts as spam
> (which happens occasionally anyway) You've given me hope that I can
> find a way to make it more reliable. Thanks
>
> Rick
>
> On Fri, Feb 21, 2020 at 12:15 PM Charlie England <ceengland7@gmail.com
> <mailto:ceengland7@gmail.com>> wrote:
>
> <ceengland7@gmail.com <mailto:ceengland7@gmail.com>>
>
> On 2/21/2020 8:53 AM, user9253 wrote:
> <fransew@gmail.com <mailto:fransew@gmail.com>>
> >
> > I tried emailing Matt several times about spam on the
> AeroElectric List
> > and other Matronics lists, but he has not responded.
> > Maybe he will see this thread. Or maybe Bob N can contact Matt.
> > I believe that a single person or company is using several
> aliases listed below.
> > The spammer can be sneaky, inserting aviation related material
> to make his or her post appear to be legitimate.
> > -
> > Matt,
> > The following threads are spam and need to be deleted:
> >
> > http://forums.matronics.com/viewtopic.php?t=18994
> > http://forums.matronics.com/viewtopic.php?t=29971
> > http://forums.matronics.com/viewtopic.php?t=36956
> > http://forums.matronics.com/viewtopic.php?t=45261
> > http://forums.matronics.com/viewtopic.php?t=64853
> > http://forums.matronics.com/viewtopic.php?t=16765515
> > http://forums.matronics.com/viewtopic.php?t=16768494
> > http://forums.matronics.com/viewtopic.php?t=16768495
> > http://forums.matronics.com/viewtopic.php?t=16768496
> > http://forums.matronics.com/viewtopic.php?t=16768497
> > http://forums.matronics.com/viewtopic.php?t=16768497
> > http://forums.matronics.com/viewtopic.php?t=16768498
> > http://forums.matronics.com/viewtopic.php?t=16770512
> > http://forums.matronics.com/viewtopic.php?t=16771914
> > http://forums.matronics.com/viewtopic.php?t=16772546
> > http://forums.matronics.com/viewtopic.php?t=16772753
> > http://forums.matronics.com/viewtopic.php?t=16773485
> > http://forums.matronics.com/viewtopic.php?t=16774897
> > http://forums.matronics.com/viewtopic.php?t=16774932
> > http://forums.matronics.com/viewtopic.php?t=16774950
> > http://forums.matronics.com/viewtopic.php?t=16774980
> > http://forums.matronics.com/viewtopic.php?t=16775011
> > http://forums.matronics.com/viewtopic.php?t=16775052
> >
> > Please delete the following spammers who posted on the above
> threads:
> >
> > AdilahBisar
> > Cameron Field
> > Isaac
> > jameslara
> > johnmathew
> > KatoGilliam
> > KennethAmpbell
> > MichealRobert
> > pallaviparker
> > stephen092
> > Verolla
> > Whiteleg
> > alisondaewon
> > fengqingxue
> > Jess
> > sofia_bow1994
> > tomarc365
> > tripathiankush
> >
> > --------
> > Joe Gores
> >
> Spam is such a minor issue on the Matronics lists that I just tell my
> email application to mark them as spam & move on. I use
> Thunderbird on
> Windows7, BlueMail on my android phone, and Gmail's native web
> interface
> if I'm on another computer. All will allow blocking spam, through
> Gmail's 'smart' spam filtering. It can learn to block individual
> senders, even if they come through an email portal like the Matronics
> email lists.
>
> Can't offer any advice on the forum format, since I don't use it.
>
> Charlie
> ==========
> br> fts!)
> r> > rel="noreferrer"
> target="_blank">http://www.matronics.com/contribution
> -Matt Dralle, List Admin.
> ==========
> -
> Electric-List" rel="noreferrer"
> target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
> ==========
> FORUMS -
> eferrer" target="_blank">http://forums.matronics.com
> ==========
> WIKI -
> errer" target="_blank">http://wiki.matronics.com
> ==========
> b Site -
> -Matt Dralle, List Admin.
> rel="noreferrer" target="_blank">http://www.matronics.com/contribution
> ==========
>
>
> --
>
>
> Blessed are the cracked, for they shall let in the light. Groucho
> Marx <http://www.goodreads.com/author/show/43244.Groucho_Marx>
>
>
Message 6
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| Subject: | Re: Power Duece Schottky diodes |
jluckey(at)pacbell.net wrote:
> Randy,
>
>
> See if this meets your specs...
>
>
> https://www.mouser.com/productdetail/stmicroelectronics/stth10002tv1?qs=Cak7mXXNf1WSROaFc2i88g%3D%3D (https://www.mouser.com/productdetail/stmicroelectronics/stth10002tv1?qs=Cak7mXXNf1WSROaFc2i88g%3D%3D)
>
>
>
>
>
> I'm using them to isolate my main buss in my RV-7.
>
>
>
>
>
>
> -Jeff
>
>
>
> On Saturday,
February 22, 2020, 10:22:16 AM PST, Charlie England wrote:
>
>
>
>
>
>
>
>
> On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY wrote:
>
>
> >
> > I want dual diodes to feed alternate power to critical components with only
one power input. The ones sold by Perihelion Designs seem to fit the bill well
but are quite pricey. Are they worth the cost or are there equally good, cheaper
solutions to be considered?
> >
> > Thanks
> > Randy
> >
> >
>
>
> There are hundreds of choices on ebay, at prices all over the map (even for the
same device). ex: The stps12045tv is a dual 60A 45V device with an electrically
isolated base (simpler mounting) that can be found for as much as $75, or
as little as 2 for $12, if you're willing to wait a few weeks for them to arrive
from China. Mouser (major electronics supplier) has them for $20. If you spend
more time searching, you might find some even cheaper; I did several months
ago.
>
>
> If you don't need that much current, you can get a whole bag of them for less
than $10 in some cases. Do exercise caution when mounting any metal tabbed device,
to be sure the tab isn't electrically common to one of the leads. When browsing,
just look for voltage above ~20V, at whatever current you need. Remember
that current ratings assume significant heat sinking; if you want to avoid
mounting on a heat sink, just oversize the device significantly for the job.
A legit heat sink will probably cost a lot more than upsizing the device. :-)
> https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps12045tv (https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps12045tv)
Thanks Jeff. That would probably work for my engine bus. It looks like that one
has two power inputs with two discrete outputs. I was more thinking two power
inputs with one power output.
Randy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494947#494947
Message 7
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| Subject: | Re: Power Duece Schottky diodes |
ceengland7(at)gmail.com wrote:
> On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY wrote:
>
>
> >
> > I want dual diodes to feed alternate power to critical components with only
one power input. The ones sold by Perihelion Designs seem to fit the bill well
but are quite pricey. Are they worth the cost or are there equally good, cheaper
solutions to be considered?
> >
> > Thanks
> > Randy
> >
> >
> >
> >
>
>
> There are hundreds of choices on ebay, at prices all over the map (even for the
same device). ex: The stps12045tv is a dual 60A 45V device with an electrically
isolated base (simpler mounting) that can be found for as much as $75, or
as little as 2 for $12, if you're willing to wait a few weeks for them to arrive
from China. Mouser (major electronics supplier) has them for $20. If you spend
more time searching, you might find some even cheaper; I did several months
ago.
>
>
> If you don't need that much current, you can get a whole bag of them for less
than $10 in some cases. Do exercise caution when mounting any metal tabbed device,
to be sure the tab isn't electrically common to one of the leads. When browsing,
just look for voltage above ~20V, at whatever current you need. Remember
that current ratings assume significant heat sinking; if you want to avoid
mounting on a heat sink, just oversize the device significantly for the job.
A legit heat sink will probably cost a lot more than upsizing the device. :-)
> https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps12045tv (https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps12045tv)
Thanks Charlie. I will look into the link you provided.
Randy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494948#494948
Message 8
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| Subject: | Re: Power Duece Schottky diodes |
That would work, but with a Vf of .7V, I think the idea that he
has is likely to use the Schottky for less voltage drop.
You can get similar Schottky diodes for similar prices and
only end up with .2 or .3V drop.
Tim
On 2/22/20 12:28 PM, Jeff Luckey wrote:
> Randy,
>
> See if this meets your specs...
>
> https://www.mouser.com/productdetail/stmicroelectronics/stth10002tv1?qs=Cak7mXXNf1WSROaFc2i88g%3D%3D
>
>
> I'm using them to isolate my main buss in my RV-7.
>
>
>
> -Jeff
>
> On Saturday, February 22, 2020, 10:22:16 AM PST, Charlie England
> <ceengland7@gmail.com> wrote:
>
>
>
>
> On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY <rpulis@shaw.ca
> <mailto:rpulis@shaw.ca>> wrote:
>
> <rpulis@shaw.ca <mailto:rpulis@shaw.ca>>
>
> I want dual diodes to feed alternate power to critical components
> with only one power input. The ones sold by Perihelion Designs seem
> to fit the bill well but are quite pricey. Are they worth the cost
> or are there equally good, cheaper solutions to be considered?
>
> Thanks
> Randy
>
>
> There are hundreds of choices on ebay, at prices all over the map (even
> for the same device). ex: The stps12045tv is a dual 60A 45V device with
> an electrically isolated base (simpler mounting) that can be found for
> as much as $75, or as little as 2 for $12, if you're willing to wait a
> few weeks for them to arrive from China. Mouser (major electronics
> supplier) has them for $20. If you spend more time searching, you might
> find some even cheaper; I did several months ago.
>
> If you don't need that much current, you can get a whole bag of them for
> less than $10 in some cases. Do exercise caution when mounting any metal
> tabbed device, to be sure the tab isn't electrically common to one of
> the leads. When browsing, just look for voltage above ~20V, at whatever
> current you need. Remember that current ratings assume significant heat
> sinking; if you want to avoid mounting on a heat sink, just oversize the
> device significantly for the job. A legit heat sink will probably cost a
> lot more than upsizing the device. :-)
> https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps12045tv
>
>
Message 9
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| Subject: | Re: Power Duece Schottky diodes |
On 2/22/2020 1:00 PM, Randy C-GRPY wrote:
>
>
> jluckey(at)pacbell.net wrote:
>> Randy,
>>
>>
>> See if this meets your specs...
>>
>>
>> https://www.mouser.com/productdetail/stmicroelectronics/stth10002tv1?qs=Cak7mXXNf1WSROaFc2i88g%3D%3D (https://www.mouser.com/productdetail/stmicroelectronics/stth10002tv1?qs=Cak7mXXNf1WSROaFc2i88g%3D%3D)
>>
>>
>>
>>
>>
>> I'm using them to isolate my main buss in my RV-7.
>>
>>
>>
>>
>>
>>
>> -Jeff
>>
>>
>>
>> On Saturday,
February 22, 2020, 10:22:16 AM PST, Charlie England wrote:
>>
>>
>>
>>
>>
>>
>>
>>
>> On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY wrote:
>>
>>
>>>
>>> I want dual diodes to feed alternate power to critical components with only
one power input. The ones sold by Perihelion Designs seem to fit the bill
well but are quite pricey. Are they worth the cost or are there equally good,
cheaper solutions to be considered?
>>>
>>> Thanks
>>> Randy
>>>
>>>
>>
>> There are hundreds of choices on ebay, at prices all over the map (even for
the same device). ex: The stps12045tv is a dual 60A 45V device with an electrically
isolated base (simpler mounting) that can be found for as much as $75, or
as little as 2 for $12, if you're willing to wait a few weeks for them to arrive
from China. Mouser (major electronics supplier) has them for $20. If you
spend more time searching, you might find some even cheaper; I did several months
ago.
>>
>>
>> If you don't need that much current, you can get a whole bag of them for less
than $10 in some cases. Do exercise caution when mounting any metal tabbed device,
to be sure the tab isn't electrically common to one of the leads. When
browsing, just look for voltage above ~20V, at whatever current you need. Remember
that current ratings assume significant heat sinking; if you want to avoid
mounting on a heat sink, just oversize the device significantly for the job.
A legit heat sink will probably cost a lot more than upsizing the device. :-)
>> https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps12045tv (https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps12045tv)
>
> Thanks Jeff. That would probably work for my engine bus. It looks like that one
has two power inputs with two discrete outputs. I was more thinking two power
inputs with one power output.
>
> Randy
The part # I quoted, and the link Jeff sent, are the same package.
Jeff's version is 50A current handling instead of 60A and 200V instead
of 40V. Either one can do what you want by simply tying the cathodes
together. It'll cost you an extra ring terminal (and a butt splice, if
you feed the output through a few inches of 'ballast' wire off each
terminal).
Charlie
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| Subject: | Re: Power Duece Schottky diodes |
Randy,
It's a 2 diode package.=C2- You can wire it any way you want.
Let me know if you have any questions,
-Jeff
On Saturday, February 22, 2020, 11:11:46 AM PST, Randy C-GRPY <rpulis@s
haw.ca> wrote:
jluckey(at)pacbell.net wrote:
> Randy,
>
>
> See if this meets your specs...
>
>
> https://www.mouser.com/productdetail/stmicroelectronics/stth10002tv1?qs
=Cak7mXXNf1WSROaFc2i88g%3D%3D (https://www.mouser.com/productdetail/stmic
roelectronics/stth10002tv1?qs=Cak7mXXNf1WSROaFc2i88g%3D%3D)
>
>
>
>
>
> I'm using them to isolate my main buss in my RV-7.
>
>
>
>
>
>
> -Jeff
>
>
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2
- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2
- =C2- =C2- On Saturday, February 22, 2020, 10:22:16 AM PST, Charlie
England=C2- wrote:=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>
>
>
> On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY=C2- wrote:
>
>
> >=C2-
> >=C2- I want dual diodes to feed alternate power to critical components
with only one power input.=C2- The ones sold by Perihelion Designs seem
to fit the bill well but are quite pricey. Are they worth the cost or are t
here equally good, cheaper solutions to be considered?
> >=C2-
> >=C2- Thanks
> >=C2- Randy
> >=C2-
> >
>
>
> There are hundreds of choices on ebay, at prices all over the map (even f
or the same device). ex: The stps12045tv is a dual 60A 45V device with an e
lectrically isolated base (simpler mounting) that can be found for as much
as $75, or as little as 2 for $12, if you're willing to wait a few weeks fo
r them to arrive from China. Mouser (major electronics supplier) has them f
or $20. If you spend more time searching, you might find some even cheaper;
I did several months ago.
>
>
> If you don't need that much current, you can get a whole bag of them for
less than $10 in some cases. Do exercise caution when mounting any metal ta
bbed device, to be sure the tab isn't electrically common to one of the lea
ds. When browsing, just look for voltage above ~20V, at whatever current yo
u need. Remember that current ratings assume significant heat sinking; if y
ou want to avoid mounting on a heat sink, just oversize the device signific
antly for the job. A legit heat sink will probably cost a lot more than ups
izing the device. :-)
> https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=d
ual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps1204
5tv (https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw
=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps
12045tv)
Thanks Jeff. That would probably work for my engine bus. It looks like that
one has two power inputs with two discrete outputs.=C2- I was more think
ing two power inputs with one power output.
Randy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494947#494947
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
-
S -
WIKI -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
Message 11
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|
| Subject: | Re: Power Duece Schottky diodes |
Mouser part: 511-STPS200170TV1Y
Mouser part: 78-VS-QA250FA20
Mouser part: 863-MBRF20L45CTG only costs $0.83
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494951#494951
Message 12
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| Subject: | Re: Power Duece Schottky diodes |
Jeff and Randy,=C2-The diode pack that Jeff supplied the link to is not i
deal for our purposes. It's really designed for heavy duty welding equipmen
t. It has a seven tenths of a volt dro forward. That means that when power
is being supplied through that diode pack you lose seven tenths of a volt.
You want to try and find one of these things that only has a 0.2 or 0.3 vol
t drop in the forward Direction. Pull up the product data sheet for any of
these that interest you. Then look on the datasheet for VF. That is the for
ward voltage drop rating for that device.
Charlie
Sent from Yahoo Mail on Android
On Sat, Feb 22, 2020 at 4:57 PM, Randy C-GRPY<rpulis@shaw.ca> wrote: --
jluckey(at)pacbell.net wrote:
> Randy,
>
>
> See if this meets your specs...
>
>
> https://www.mouser.com/productdetail/stmicroelectronics/stth10002tv1?qs
=Cak7mXXNf1WSROaFc2i88g%3D%3D (https://www.mouser.com/productdetail/stmic
roelectronics/stth10002tv1?qs=Cak7mXXNf1WSROaFc2i88g%3D%3D)
>
>
>
>
>
> I'm using them to isolate my main buss in my RV-7.
>
>
>
>
>
>
> -Jeff
>
>
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2
- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2
- =C2- =C2- On Saturday, February 22, 2020, 10:22:16 AM PST, Charlie
England=C2- wrote:=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>
>=C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2-
>
>
>
> On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY=C2- wrote:
>
>
> >=C2-
> >=C2- I want dual diodes to feed alternate power to critical components
with only one power input.=C2- The ones sold by Perihelion Designs seem
to fit the bill well but are quite pricey. Are they worth the cost or are t
here equally good, cheaper solutions to be considered?
> >=C2-
> >=C2- Thanks
> >=C2- Randy
> >=C2-
> >
>
>
> There are hundreds of choices on ebay, at prices all over the map (even f
or the same device). ex: The stps12045tv is a dual 60A 45V device with an e
lectrically isolated base (simpler mounting) that can be found for as much
as $75, or as little as 2 for $12, if you're willing to wait a few weeks fo
r them to arrive from China. Mouser (major electronics supplier) has them f
or $20. If you spend more time searching, you might find some even cheaper;
I did several months ago.
>
>
> If you don't need that much current, you can get a whole bag of them for
less than $10 in some cases. Do exercise caution when mounting any metal ta
bbed device, to be sure the tab isn't electrically common to one of the lea
ds. When browsing, just look for voltage above ~20V, at whatever current yo
u need. Remember that current ratings assume significant heat sinking; if y
ou want to avoid mounting on a heat sink, just oversize the device signific
antly for the job. A legit heat sink will probably cost a lot more than ups
izing the device. :-)
> https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=d
ual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps1204
5tv (https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw
=dual+schottky+diode&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=stps
12045tv)
Thanks Jeff. That would probably work for my engine bus. It looks like that
one has two power inputs with two discrete outputs.=C2- I was more think
ing two power inputs with one power output.
Randy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494947#494947
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
-
S -
WIKI -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
Message 13
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| Subject: | Re: Power Duece Schottky diodes |
Thanks fellas for chiming in. I'm on the steep part of the learning curve. I
was thinking about using the DSS2X61-0045A although I'm still planning on browsing
for less expensive alternatives that will do the job adequately. I like
the style of the one referenced simply because it looks ready to connect and mount.
One question: For low current applications such as those in our aircraft, watts
should be pretty low. How do I determine if a heat sink is required?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494954#494954
Message 14
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| Subject: | Re: Power Duece Schottky diodes |
Most of the diodes discussed above will drop about 0.5 volts at 10 amps.
The power loss will be 0.5 x 10 = 5 watts. That will produce lots of heat.
Have you ever touched a 3 watt incandescent night light?
So yes, use a heat sink with heat conductive paste.
The aircraft structure can serve as a heat sink if it is aluminum.
If the diode mounting surface is not electrically insulated from the diode terminals,
then some
type of dielectric heat conductive film must be used between the diode and mounting
surface.
If a TO220 diode is used, solder wires to the 3 terminals.
A coating of E6000 will insulate and protect the terminals from vibration.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494957#494957
Message 15
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| Subject: | Re: Power Duece Schottky diodes |
Randy C-GRPY wrote:
> Also, how are the electrical connections made to the pins of the diode typically?
> The diodes with the prongs look like there should be a matching plug.
>
> Randy
Hi Randy, those are TO-220 cases designed for circuit board mount. They have their
very own Wikipedia page. https://en.m.wikipedia.org/wiki/TO-220
I suggest soldering to them like this: http://www.aeroelectric.com/articles/Solder_Lap_Splicing/Solder_Lap_Splices.html
Apply heat as quickly as possible to avoid damaging the diode.
--------
John Bright, RV-6A, at FWF, O-360, dual SDSEFI EM-5-F
Dual batt dual alt SDS dual EM-5-F but considering a single batt design.
john_s_bright@yahoo.com, Newport News, Va
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494958#494958
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| Subject: | Re: SPAM on Matronics |
Charlie, I also use gmail. The spam that I am talking about is not delivered via
email.
It is posted on the Matronics website and is embedded into
existing threads or else new threads are started by the scammer.
Use this link, http://forums.matronics.com/viewforum.php?f=3
to read the AeroElectric List. No email is involved.
The above listed spammers have posted a total of 68 times on Matronics.
Compare that to VansAirforce where I have never seen any spam posted.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494959#494959
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Hi Bob,
Question... what is the part number of this relay shown in Z-02 and Z-07?
--------
John Bright, RV-6A, at FWF, O-360, dual SDSEFI EM-5-F
Dual batt dual alt SDS dual EM-5-F but considering a single batt design.
john_s_bright@yahoo.com, Newport News, Va
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494960#494960
Attachments:
http://forums.matronics.com//files/relay_aux_alternator_168.jpeg
Message 18
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| Subject: | Re: Power Duece Schottky diodes |
user9253 wrote:
> Most of the diodes discussed above will drop about 0.5 volts at 10 amps.
> The power loss will be 0.5 x 10 = 5 watts. That will produce lots of heat.
> Have you ever touched a 3 watt incandescent night light?
> So yes, use a heat sink with heat conductive paste.
> The aircraft structure can serve as a heat sink if it is aluminum.
> If the diode mounting surface is not electrically insulated from the diode terminals,
then some
> type of dielectric heat conductive film must be used between the diode and mounting
surface.
> If a TO220 diode is used, solder wires to the 3 terminals.
> A coating of E6000 will insulate and protect the terminals from vibration.
Thank you Joe. I'm going to be mounting the diodes on the subpanel which is aluminium
and most of the components will be less than 5 amps. Based on what you
just said, I think that a heat sink likely isn't necessary other than using the
panel.
Randy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494961#494961
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