Fuse or fusible resistor?

D

DaveC

Guest
Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave
 
In article
<0001HW.C84C25A9011554E5B01AD9AF@news.eternal-september.org>,
DaveC <invalid@invalid.net> wrote:

Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave
Click to expand...
USE COMPLETE SENTENCES!

--
An old man would be better off never having been born.
 
On 6/26/2010 9:56 PM Salmon Egg spake thus:

In article
0001HW.C84C25A9011554E5B01AD9AF@news.eternal-september.org>, DaveC
invalid@invalid.net> wrote:

Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

USE COMPLETE SENTENCES!
Click to expand...
A grammar nanny, eh?

You must be a big hit at parties ...


--
The fashion in killing has an insouciant, flirty style this spring,
with the flaunting of well-defined muscle, wrapped in flags.

- Comment from an article on Antiwar.com (http://antiwar.com)
 
On Sat, 26 Jun 2010 21:56:44 -0700, Salmon Egg
<SalmonEgg@sbcglobal.net> wrote:

In article
0001HW.C84C25A9011554E5B01AD9AF@news.eternal-september.org>,
DaveC <invalid@invalid.net> wrote:

Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave

USE COMPLETE SENTENCES!
Click to expand...
Idiot
^^^^^ Not a complete sentence
^^^^^^^^^^^^^^^^^^^^^^^ Not a complete sentence

Etc.

John
 
On Sat, 26 Jun 2010 21:56:44 -0700, Salmon Egg <SalmonEgg@sbcglobal.net>
wrote:

In article
0001HW.C84C25A9011554E5B01AD9AF@news.eternal-september.org>,
DaveC <invalid@invalid.net> wrote:

Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave

USE COMPLETE SENTENCES!
Click to expand...
Jeez. Yer an idiot.
 
On Sat, 26 Jun 2010 22:09:36 -0700, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

On Sat, 26 Jun 2010 21:56:44 -0700, Salmon Egg
SalmonEgg@sbcglobal.net> wrote:

In article
0001HW.C84C25A9011554E5B01AD9AF@news.eternal-september.org>,
DaveC <invalid@invalid.net> wrote:

Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave

USE COMPLETE SENTENCES!

Idiot
^^^^^ Not a complete sentence
^^^^^^^^^^^^^^^^^^^^^^^ Not a complete sentence

Etc.

John
Click to expand...
I should have figured that not a goddamned soul actually tried to answer
the question.

It sounds like a 'soft-fuze'. That resets itself after tripping.

There is also a similar device used in hair dryer circuitry.
 
"DaveC" <

Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A"
or
"1E7A".
Click to expand...

** Sounds like a Pico Fuse:

http://media.digikey.com/photos/Littelfuse%20Photos/PICO%20II%20R251%20SERIES.jpg

Come in fast and very fast ratings with amps rated from 1A to about 15A.

When they blow, you need a soldering iron to replace them.

There are various Asians clones too.


...... Phil
 
"DaveC"

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A"
or
"1E7A".
Click to expand...

** Sure that is not the other way around ?

Pico Fuse would use " 7A LE " as a the marking for a 7 amp fuse.



..... Phil
 
DaveC <invalid@invalid.net> wrote in message
news:0001HW.C84C25A9011554E5B01AD9AF@news.eternal-september.org...
Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A"
or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave
Click to expand...

I take it , that its blown and I also take it that its not charred (fusible
R don't char or even discolour AFAIK)
Desolder it and scrape an axial line along its length . Then DVM resistance
check from either end. If a fusible resistor then maximum R read is what its
value was near enough.
FR breaks are usually to one end, normal R usually in the middle.
Although green is often axial inductor.

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://diverse.4mg.com/index.htm
 
In article
<0001HW.C84C25A9011554E5B01AD9AF@news.eternal-september.org>,
DaveC <invalid@invalid.net> wrote:

Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave
Click to expand...
Littlefuse makes green resistor-shaped fuses. Their logo is an 'L'
wrapped under an 'F' so their 'LF' could look like 'IE' on a worn part.

http://www.littelfuse.com/data/en/Data_Sheets/Littelfuse_251_253.pdf
--
I won't see Google Groups replies because I must filter them as spam
 
Littlefuse makes green resistor-shaped fuses. Their logo is an 'L'
wrapped under an 'F' so their 'LF' could look like 'IE' on a worn part.

http://www.littelfuse.com/data/en/Data_Sheets/Littelfuse_251_253.pdf
Click to expand...
Thanks, Kevin.

They way Littelfuse uses a stylized "LF", it could easily be mistaken for
"1E" or "lE".

Now to get one...

Thanks again,
Dave
 
I take it , that its blown and I also take it that its not charred (fusible
R don't char or even discolour AFAIK)
Click to expand...
No, I don't have one. I threw it out with the old battery. :-(
Someone on-line volunteered to describe the one from his scope.
I'll not ask him to do a post-mortem on a working fuse. ;-)

Thanks,
Dave
 
DaveC wrote:
Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave

Fuse.
Click to expand...
Ratings of these beasts in equipment is almost NEVER disclosed - like
a company secret more precious than any other secret they have.
Measure current draw and see what the maximum is during any
operations, double that for a guide in choosing "first guess" replacement.
 
On Sun, 27 Jun 2010 01:36:38 -0700, Robert Baer <robertbaer@localnet.com>
wrote:

DaveC wrote:
Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave

Fuse.
Ratings of these beasts in equipment is almost NEVER disclosed - like
a company secret more precious than any other secret they have.
Measure current draw and see what the maximum is during any
operations, double that for a guide in choosing "first guess" replacement.
Click to expand...
The axial leaded jobs I have seen in hair dryers are high current jobs
with reed switches inside them. Not the soft break jobs.

The biggest soft device I recall was 3 Amps.
 
In article <3upd265udo81jog5tk6khrgnf9gsc2d4q2@4ax.com>,
Pieyed Piper <pieyedPiper@thebongshopattheendoftheuniverse.org> wrote:

I should have figured that not a goddamned soul actually tried to answer
the question.
Click to expand...
Could that be because no one knew what tghe question was?

Idiot

--
An old man would be better off never having been born.
 
On Sun, 27 Jun 2010 08:34:26 -0700, Salmon Egg <SalmonEgg@sbcglobal.net>
wrote:

In article <3upd265udo81jog5tk6khrgnf9gsc2d4q2@4ax.com>,
Pieyed Piper <pieyedPiper@thebongshopattheendoftheuniverse.org> wrote:

I should have figured that not a goddamned soul actually tried to answer
the question.

Could that be because no one knew what tghe question was?
Click to expand...
If you cannot glean the question from that, you are not only too
goddamned retarded to be answering it, you are too goddamned retarded to
be in the group at all, much less being here, acting like you have half a
fucking brain.
Idiot
Click to expand...
Nice sig, dumbfuck. It fits you perfectly.
 
Ratings of these beasts in equipment is almost NEVER disclosed - like
a company secret more precious than any other secret they have.
Click to expand...
And that's why markings are so important. You can circumvent any need to
measure.
 
Fester Bestertester <fbt@fbt.net> wrote in
news:0001HW.C84CC1A60139E3FEB01AD9AF@news.eternal-september.org:

Ratings of these beasts in equipment is almost NEVER disclosed - like
a company secret more precious than any other secret they have.

And that's why markings are so important. You can circumvent any need to
measure.
Click to expand...
Oh man, has science really come to this? >:)
 
"Salmon Egg" <SalmonEgg@sbcglobal.net> wrote in message
news:SalmonEgg-E4DEAF.21564326062010@news60.forteinc.com...
In article
0001HW.C84C25A9011554E5B01AD9AF@news.eternal-september.org>,
DaveC <invalid@invalid.net> wrote:

Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A"
or
"1E7A".

Google returns slim results, none promising.

What type is this?

Thanks,
Dave

USE COMPLETE SENTENCES!

--
An old man would be better off never having been born.
Click to expand...
They are complete s

Just not ones that you

What I am writing, are incomplete sen

And don't

We don't like that on sci

Arf
 
DaveC wrote:
Used in the battery (-) lead of a handheld scope. Schematics unpublished.

Physically similar to a 1/4 W resistor, color light green. Marked "IE7A" or
"1E7A".

Google returns slim results, none promising.

What type is this?
Click to expand...

<http://www.littelfuse.com/data/en/Product_Catalogs/Chapter10SurfaceMountFuses.pdf>
and several other fuse manufacturers list E as .375A. If you read the
data sheets, you should be able to determine what family you need.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.
 
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