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Old 11th December 2011, 07:34 PM   #11
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Quote:
Originally Posted by AmpliFire View Post
.... However, two other 22000 uF PANA TS-HA caps that came with mentioned new caps from Digikey are labelled '01710'. What to make of that? ....
I would >hope< they changed their date code from 'YRWEEK' to 'DAYYR' or maybe 'WEEKYR,' then they would be from 017th day (week?) of 2010, and not 71st week of 2001!

You may need to investigate manf date codes further....
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Old 11th December 2011, 07:57 PM   #12
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Originally Posted by Andersonix View Post
I would >hope< they changed their date code from 'YRWEEK' to 'DAYYR' or maybe 'WEEKYR,' then they would be from 017th day (week?) of 2010, and not 71st week of 2001!

You may need to investigate manf date codes further....
I'm with you; I was having the same thoughts, and went out to investigate further, but neither the TS-HA datasheet or Pana's website provide any date coding information. If it would be day 17 of 2010 then Digikey has sold me an almost 2 year old cap, I hope that's not the case. Perhaps I should just contact them for clarifications.

And the various Nippon Chemi-con KMH caps from the same Digikey order have no regular coding at all: 16V05L 27 and 17d01L 16, surely not from 2001 and 2005 I imagine (hope). I would think these are production batches.
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Old 11th December 2011, 08:11 PM   #13
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A couple of years ago now (2009), I got some Nippon Chemi-con KMH from Apex Jr that have the code 65F04L, and I ASSUME they are from 2004....

But then I have some other Nippon Chemi-con (50V 68000uF) that have code '0043L 35' which I also ASSUME is 43rd week of 2000.

Last edited by Andersonix; 11th December 2011 at 08:24 PM.
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Old 11th December 2011, 08:25 PM   #14
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Originally Posted by Andersonix View Post
A couple of years ago now (2009), I got some Nippon Chemi-con KMH from Apex Jr that have the code 65F04L, and I ASSUME they are from 2004....
Ok, now I'm going to contact Nippon Chemi-con, because I'm at the brink of war with Digikey. Already they are permanent out of stock of polypropylene film caps, and then they also mixed up a large number of expensive resistors with 'equivalents', screwing up my upcoming projects. Im so done with these guys.
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Old 12th December 2011, 12:40 PM   #15
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Guys.. this might be useful !

Nippon Chemi-con date codes

Luckily that would mean my KMH were made in 2011 !
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Old 12th December 2011, 01:00 PM   #16
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Also found this about Panasonic

Panasonic Capacitor 1000uf, 200V,... - element14

1126E 2011 January 26th
8925E 2008 September 25th

Above dates could well be 2001 or 1998, but from Digikey, I would doubt it, and this paper implies that they switched to PET sleeves after 2004

http://www.panasonic.com/industrial/.../pdf/dc103.pdf

There goes so much for the investigation.. !
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Old 12th December 2011, 06:19 PM   #17
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Thanks, Lazybutt! That's good news and makes AmpliFire's '01710' Panasonics from Jan 71, 2010, so at least the year makes sense....?

And my '65F04L' KMH are from 2006....

I was hopeful that if I made enough assumptions, someone would come along and set me straight!
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Old 12th December 2011, 08:46 PM   #18
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Lazybutt, that's a great research (1000 thanks !), for a good reason too... the Pana '01710' are the 22000uF/25V ones I bought for you

Oof, I'm happy to learn that my KMG caps '17d01L 16' are actually 10 years younger... so they are:

year: 2011
month: July
day: d (either the 4th or 30th), or should we say d-day ?
factory line: 01
factory: Lansing
lot #: 16

Huh ? Andersonix.... I know our dark winter days seem too dark and too many, but 71 days in January...? You are the hero of the financial world, 10 weeks working for a regular monthly salary

Now, I checked again the last '0' in the '01710' and it is a real '0' and not an 'O', like the other Pana TS-HA caps have that 'E'. The best I can make out of it is 2010 17 October, but that would brake the rule set above...

PS: I did send a message to Nippon Chemi-Con customer service last night, no reply so far. Will keep you posted if they reply. I guess I should contact Panaboys as well.

Last edited by AmpliFire; 12th December 2011 at 09:10 PM.
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Old 12th December 2011, 09:45 PM   #19
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so, this means my caps are not 22 years old?
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Old 12th December 2011, 09:48 PM   #20
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Quote:
Originally Posted by lanchile View Post
so, this means my caps are not 22 years old?
Indeed, see post #16:

8925E = 2008 September 25th, which seems to make sense since the printing is exactly the same as on my pana caps recently bought.
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