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Newsgroups: sci.electronics.design
From:
Tim Wescott <t... @seemywebsite.com> Date: Wed, 27 Aug 2008 21:31:30 -0700
Local: Thurs, Aug 28 2008 3:31 pm
Subject: Mystery Component
From a box of engineering surplus from a client (so I can't just check
their part number).
It's a 1210 package, orange, says
"DALE"
It ohms out to 1.0 ohms -- so it certainly isn't a 4.7 ohm resistor.
Does Dale make coils? Where to check?
--
Tim Wescott http://www.wescottdesign.com
Do you need to implement control loops in software? http://www.wescottdesign.com/actfes/actfes.html
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Newsgroups: sci.electronics.design
From:
"Michael A. Terrell" <mike.terr... @earthlink.net> Date: Thu, 28 Aug 2008 00:42:38 -0400
Local: Thurs, Aug 28 2008 3:42 pm
Subject: Re: Mystery Component
Tim Wescott wrote:
> From a box of engineering surplus from a client (so I can't just check
> It's a 1210 package, orange, says
> "DALE"
> It ohms out to 1.0 ohms -- so it certainly isn't a 4.7 ohm resistor.
> Does Dale make coils? Where to check?
Yes they did. They are part if Vishay these days.
http://www.vishay.com/company/brands/dale/ http://www.vishay.com/inductors/surface-mount/
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Newsgroups: sci.electronics.design
From:
"David L. Jones" <altz... @gmail.com> Date: Wed, 27 Aug 2008 22:19:54 -0700 (PDT)
Local: Thurs, Aug 28 2008 4:19 pm
Subject: Re: Mystery Component
On Aug 28, 2:31 pm, Tim Wescott <t
... @seemywebsite.com> wrote:
> From a box of engineering surplus from a client (so I can't just check
> their part number).
> It's a 1210 package, orange, says
> "DALE"
> It ohms out to 1.0 ohms -- so it certainly isn't a 4.7 ohm resistor.
Most likely an inductor. 4R7 is likely to be the impedance at 100MHz.
Dave.
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Newsgroups: sci.electronics.design
From:
Don Bowey <dbo... @comcast.net> Date: Wed, 27 Aug 2008 22:35:25 -0700
Local: Thurs, Aug 28 2008 4:35 pm
Subject: Re: Mystery Component
On 8/27/08 9:31 PM, in article
I8OdnfV0m9aBtyvVnZ2dnUVZ_sedn
... @web-ster.com, "Tim Wescott"
<t
... @seemywebsite.com> wrote:
> From a box of engineering surplus from a client (so I can't just check
> their part number).
> It's a 1210 package, orange, says
> "DALE"
> It ohms out to 1.0 ohms -- so it certainly isn't a 4.7 ohm resistor.
> Does Dale make coils? Where to check?
Why not just measure it for inductance?
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Newsgroups: sci.electronics.design
From:
Robert Baer <robertb... @localnet.com> Date: Wed, 27 Aug 2008 22:48:31 -0700
Local: Thurs, Aug 28 2008 4:48 pm
Subject: Re: Mystery Component
David L. Jones wrote:
> On Aug 28, 2:31 pm, Tim Wescott <t
... @seemywebsite.com> wrote:
>> From a box of engineering surplus from a client (so I can't just check
>>It's a 1210 package, orange, says
>>"DALE"
>>It ohms out to 1.0 ohms -- so it certainly isn't a 4.7 ohm resistor.
> Most likely an inductor. 4R7 is likely to be the impedance at 100MHz.
> Dave.
More likely inductance in nH?
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Newsgroups: sci.electronics.design
From:
Tim Wescott <t... @seemywebsite.com> Date: Wed, 27 Aug 2008 23:18:10 -0700
Local: Thurs, Aug 28 2008 5:18 pm
Subject: Re: Mystery Component
Michael A. Terrell wrote:
> Tim Wescott wrote:
>> From a box of engineering surplus from a client (so I can't just check
>> their part number).
>> It's a 1210 package, orange, says
>> "DALE"
>> It ohms out to 1.0 ohms -- so it certainly isn't a 4.7 ohm resistor.
>> Does Dale make coils? Where to check?
> Yes they did. They are part if Vishay these days.
> http://www.vishay.com/company/brands/dale/ http://www.vishay.com/inductors/surface-mount/
That appears to be the right answer -- they have some 1210 parts that
fit what I have, barring color.
--
Tim Wescott http://www.wescottdesign.com
Do you need to implement control loops in software? http://www.wescottdesign.com/actfes/actfes.html
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Newsgroups: sci.electronics.design
From:
Eeyore <rabbitsfriendsandrelati... @hotmail.com> Date: Thu, 28 Aug 2008 11:34:13 +0100
Local: Thurs, Aug 28 2008 9:34 pm
Subject: Re: Mystery Component
Robert Baer wrote:
> David L. Jones wrote:
> Tim Wescott <t
... @seemywebsite.com> wrote:
> >> From a box of engineering surplus from a client (so I can't just check
> >>It's a 1210 package, orange, says
> >>"DALE"
> >>It ohms out to 1.0 ohms -- so it certainly isn't a 4.7 ohm resistor.
> > Most likely an inductor. 4R7 is likely to be the impedance at 100MHz.
> More likely inductance in nH?
Something like that. nH sounds a bit small though.
Graham
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Newsgroups: sci.electronics.design
From:
Tim Wescott <t... @justseemywebsite.com> Date: Fri, 29 Aug 2008 00:50:45 -0500
Local: Fri, Aug 29 2008 4:50 pm
Subject: Re: Mystery Component
On Thu, 28 Aug 2008 11:34:13 +0100, Eeyore wrote:
> Robert Baer wrote:
>> David L. Jones wrote: ... @seemywebsite.com> wrote:
>> >> From a box of engineering surplus from a client (so I can't just
>> >>It's a 1210 package, orange, says
>> >>"DALE"
>> >>It ohms out to 1.0 ohms -- so it certainly isn't a 4.7 ohm resistor.
>> > Most likely an inductor. 4R7 is likely to be the impedance at 100MHz.
>> More likely inductance in nH?
> Something like that. nH sounds a bit small though.
> Graham
I found something the right size on Dale's site, the 4.7 uH part had a
max resistance of 1.3 ohms.
--- http://www.wescottdesign.com/
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