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Inductor Color Code

  • Thread starter Watson A.Name - Watt Sun, Dark Remover
  • Start date
W

Watson A.Name - Watt Sun, Dark Remover

Jan 1, 1970
0
Hokay, I pulled an inductor out and measured it, and this is what I
came up with. The body is about the diameter and shape of a 1W
reisistor, but it's shorter, maybe 2/3 as long. It's a light green,
with four equidistant stripes like a resistor. The stripes are

Orange 3

White 9

Black 0

Orange 3 multiplier

Looks like 390,000 to me. If it were 39 thousand, then it would make
sense that the value is in nanohenries. Other identical sized
inductors I have are striped brown, grey, brown, silver, which is 180
microhenries with 10% tolerance, just like resistors.

The LC meter measures about 40 uH. So it's obviously 39 uH. Would
anyone want to shed some insight on this? Thanks.
+


--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
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My email address is whitelisted. *All* email sent to it
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Don't be ripped off by the big book dealers. Go to the URL
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http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@
 
P

Peter Lowrie

Jan 1, 1970
0
Say Watson, Go check the link in you OWN footer.
 
H

HKJ

Jan 1, 1970
0
Watson A.Name - Watt Sun said:
Orange 3

White 9

Black 0

Orange 3 multiplier

Looks like 390,000 to me. If it were 39 thousand, then it would make
sense that the value is in nanohenries. Other identical sized
inductors I have are striped brown, grey, brown, silver, which is 180
microhenries with 10% tolerance, just like resistors.

The LC meter measures about 40 uH. So it's obviously 39 uH. Would
anyone want to shed some insight on this? Thanks.

The last band is tolerance, but I have not seen a orange tolerance band
before.

The program http://hjem.get2net.dk/hkj/miscel.html can decode and encode
most colorcodes.
 
W

Watson A.Name - Watt Sun, Dark Remover

Jan 1, 1970
0
The last band is tolerance, but I have not seen a orange tolerance band
before.

The program http://hjem.get2net.dk/hkj/miscel.html can decode and encode
most colorcodes.

I got connection refused when I tried the above URL.

I did a search and found this: http://www.elexp.com/t_induct.htm
And I'll have to admit that I've never heard of a 3% inductor before.

But on the inductor at the bottom, the colors don't make sense.

--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@
 
H

HKJ

Jan 1, 1970
0
Watson A.Name - Watt Sun said:
I got connection refused when I tried the above URL.

Strange, I have no problems. I have a alternate copy of the site here:
http://henrik.k.jensen.homepage.dk/miscel.html

I did a search and found this: http://www.elexp.com/t_induct.htm
And I'll have to admit that I've never heard of a 3% inductor before.

I wonder where they got the 3% and 4% from.

But on the inductor at the bottom, the colors don't make sense.

It just start with a silver band to signal military color coding.
 
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