Help finding a part.

[Chris W]

I have a motor controller board that needs some new parts. On of them I
can not identify. I am about 99% sure it is a capacitor. It is yellow
and rectangular in shape the dimensions are approximately....
7mm x 2.5mm x 6mm

the markings on it start with what I am pretty sure is a 'T' that is
just slanted (someones logo I guess). After that in has 47n K 63

Can someone tell me if this is a capacitor or not and what size it is
(47nF?) Also I need to know what to search for to find the same size
and shape capacitor.



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Chris W
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[Spehro Pefhany]

I have a motor controller board that needs some new parts. On of them I
can not identify. I am about 99% sure it is a capacitor. It is yellow
and rectangular in shape the dimensions are approximately....
7mm x 2.5mm x 6mm

the markings on it start with what I am pretty sure is a 'T' that is
just slanted (someones logo I guess). After that in has 47n K 63

Can someone tell me if this is a capacitor or not and what size it is
(47nF?) Also I need to know what to search for to find the same size
and shape capacitor.

Sounds like a 47nF (0.047uF) 63V film capacitor ('box' type).

Here is a typical type (5mm lead pitch):
http://rocky.digikey.com/WebLib/Epcos/Web Photos/MKT SERIES 6.5H,7.2L.jpg

You can use dipped or box type of the same or higher voltage rating,
any electronics supplier should have these.


Best regards,
Spehro Pefhany

 

[Eeyore]

I have a motor controller board that needs some new parts. On of them I
can not identify. I am about 99% sure it is a capacitor. It is yellow
and rectangular in shape the dimensions are approximately....
7mm x 2.5mm x 6mm

the markings on it start with what I am pretty sure is a 'T' that is
just slanted (someones logo I guess). After that in has 47n K 63

Can someone tell me if this is a capacitor or not and what size it is
(47nF?) Also I need to know what to search for to find the same size
and shape capacitor.

Yes it's 47n ! It's 63V and K means 20% tolerance. I'll betcha the pins are on a
5mm pitch too.

It's a standard 'box poly' type.

Graham

 

[Eeyore]

Sounds like a 47nF (0.047uF) 63V film capacitor ('box' type).

Here is a typical type (5mm lead pitch):
http://rocky.digikey.com/WebLib/Epcos/Web Photos/MKT SERIES 6.5H,7.2L.jpg

Except I'll bet that one's polypropylene dielectric (blue).

Graham

 

[Spehro Pefhany]

Except I'll bet that one's polypropylene dielectric (blue).

Graham

The associated datasheet says stacked-film PET (polyester) but there
is no guarantee it's a photo of the actual part, and they don't
mention the color on the datasheet.

http://www.epcos.com/inf/20/20/db/fc_05/MKT_B32520_29.pdf

It's unlikely to matter much for a motor controller.


Best regards,
Spehro Pefhany

 

[Eeyore]

The associated datasheet says stacked-film PET (polyester) but there
is no guarantee it's a photo of the actual part, and they don't
mention the color on the datasheet.

http://www.epcos.com/inf/20/20/db/fc_05/MKT_B32520_29.pdf

It's unlikely to matter much for a motor controller.

Probably not. Here a link to a page at RS Components.
http://rswww.com/cgi-bin/bv/rswww/s...cddaddkimelkjfcefeceeldgondhgg.0&cacheID=ukie

They show it as blue too. It must be Epcos's house colour. It would be handy if there
was a colour standard to indicate dielectric.

Graham