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Old 8th December 2006, 06:17 PM   #1
adhoc is offline adhoc  Australia
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Default Identify this capacitor?

Can anyone out there identify these power capacitors?

Click the image to open in full size.
Click the image to open in full size.

If it wasn't clear enough - the capacitor colours are metallic red and grey-white.

Markings on the capacitor are as follows -

on one side:
'Elna' (brand obviously)
'(M)' (??)
'16V/2200uF' (rating obviously)

and on the other side:
'CE105C' (temp rating I believe)
'9722' or '9714' (batch numbers perhaps?)
'S' (S is within a circle)

Anyone?
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Old 9th December 2006, 09:49 PM   #2
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Default Re: Identify this capacitor?

Quote:
Originally posted by adhoc

Markings on the capacitor are as follows -

on one side:
'Elna' (brand obviously)
'(M)' (??)
'16V/2200uF' (rating obviously)

and on the other side:
'CE105C' (temp rating I believe)
'9722' or '9714' (batch numbers perhaps?)
'S' (S is within a circle)

Anyone?
M appears to signify A tolerance of +-20%

Not sure about the 'S' though.

The Elna website is quite thorough but I'm sure that you have already looked there.

A useful guide to cap markings is at the bottom of this page:
http://www.elna.co.jp/en/ct/pdf/al_caue.pdf

Is this Elna's standard range? I've only ever used cerafines or Silmics myself but I like the pretty colours on these.
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Old 10th December 2006, 04:23 AM   #3
adhoc is offline adhoc  Australia
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I came close with the Elna 'Starget' series (exact same colours!), but my capacitors are not labeled 'Starget'. Only '(S)'

I just sent an email to Elna America - we'll see how this pans out.
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Old 10th December 2006, 04:33 AM   #4
Apex Jr is offline Apex Jr  United States
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Electrolytic Radial Caps

M is + or - 20%

9722 and 9741 are date codes=
22nd week of 1997 and 41st week of 1997

CE 105C Degrees CE is Canadian UL

Stumped on the circle S

Steve @ Apex Jr.
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Old 10th December 2006, 04:47 AM   #5
adhoc is offline adhoc  Australia
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Quote:
Originally posted by Apex Jr
Electrolytic Radial Caps

M is + or - 20%

9722 and 9741 are date codes=
22nd week of 1997 and 41st week of 1997

CE 105C Degrees CE is Canadian UL

Stumped on the circle S

Steve @ Apex Jr.
Thanks for your reply! These caps are ancient. I will not feel bad replacing them.
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Old 11th December 2006, 10:43 PM   #6
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Replace them? Why? They're less than ten years old. I've got electrolytic caps approaching thirty years that are working just fine.
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Old 12th December 2006, 02:46 AM   #7
Leolabs is offline Leolabs  Malaysia
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They can be seen on some motherboards.
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Old 12th December 2006, 04:46 AM   #8
adhoc is offline adhoc  Australia
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Quote:
Originally posted by Leolabs
They can be seen on some motherboards.
I have since replaced them with Panasonic FCs and FMs - now at least I know that that was not a bad decision.

Damon, my experience with electrolytics in general has led me to err on the side of caution. In contrast to you, I've seen caps in old tube testers go dry in just 30 years too!
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Old 12th December 2006, 11:59 AM   #9
AMV8 is offline AMV8  United Kingdom
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Hi

Your capacitors seem to be Elna with a 105 degree c rating. The 105 degree rating means that they are high quality parts. I doubt that you will find a better capacitor than a 105 )c elna - I never have.

Don
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