A fellow sent me this photo and asked me if I could find one:
http://www.teknetwork.com/~bcarlson/xfer/1.jpg
This data sheet from OHMITE gets pretty close but they don’t show a 22
ohm resistor:
http://www.teknetwork.com/~bcarlson/xfer/tww_twm_series.pdf
I realize the text in the logo is unreadable but does the shape of the
logo look familiar? Any ideas for manufacturer or distributors?
thanks
Bob
> http://www.teknetwork.com/~bcarlson/xfer/1.jpg
> I realize the text in the logo is unreadable but does the shape of the
> logo look familiar? Any ideas for manufacturer or distributors?
What logo? The only two logos I see on that are the Underwriters Labs
logo (top left in your picture) and the CSA logo below it. Both of
those are type approvals, not manufacturer logos.
You can find the datasheet for this part at Uchihashi’s website,
specifically: <http://www.uchihashi.co.jp/japanese/a53k.htm>. And even
a better photo of it
I see what yo mean about the CSA, I should have recognized it.
I am having some trouble with the data sheet but you have given me a lead to
chase.
Thanks
B
- Hide quoted text — Show quoted text -
"Lewin A.R.W. Edwards" wrote:
> > http://www.teknetwork.com/~bcarlson/xfer/1.jpg
> > I realize the text in the logo is unreadable but does the shape of the
> > logo look familiar? Any ideas for manufacturer or distributors?
> What logo? The only two logos I see on that are the Underwriters Labs
> logo (top left in your picture) and the CSA logo below it. Both of
> those are type approvals, not manufacturer logos.
> You can find the datasheet for this part at Uchihashi’s website,
> specifically: <http://www.uchihashi.co.jp/japanese/a53k.htm>. And even
> a better photo of it
Am I making a bad assumption that this device is a resistor? The
http://www.uchihashi.co.jp/english
site shows thermal cutoffs with a similar picture. Is this thing a thermal
cutoff?
Thanks,
bob
- Hide quoted text — Show quoted text -
"Lewin A.R.W. Edwards" wrote:
> > http://www.teknetwork.com/~bcarlson/xfer/1.jpg
> > I realize the text in the logo is unreadable but does the shape of the
> > logo look familiar? Any ideas for manufacturer or distributors?
> What logo? The only two logos I see on that are the Underwriters Labs
> logo (top left in your picture) and the CSA logo below it. Both of
> those are type approvals, not manufacturer logos.
> You can find the datasheet for this part at Uchihashi’s website,
> specifically: <http://www.uchihashi.co.jp/japanese/a53k.htm>. And even
> a better photo of it
>making a bad assumption that this device is a resistor? The
> http://www.uchihashi.co.jp/english
> site shows thermal cutoffs with a similar picture. Is this thing a thermal
> cutoff?
It appears to be part of the ELCUT family of battery protection
devices, but it isn’t in either the Japanese or English datasheets.
"Battery Protection Devices
ELCUT thermoprotectors are assisting various batteries protection.
Especially, they are applied for the overheat or overcharge protection
of Lithium-Ion Batteries."
Most definitely, it is a fusible resistor/overcurrent/thermal
protection device of some kind – not just a regular resistor. It’s
also likely to be safety-critical, so best find an *exact* substitute
unless you enjoy burning buildings to the ground.