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#1 |
o.O
Join Date: Sep 2007
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![]() someone (i think it was kc8) posted how to decrypt the panasonic datecodes.
however.. i cant seem to find that thread/post.. ![]() so... any idea how to decrypt those? i just recently got a shitload of mixed, "new" (unused) pannys (mostly FJ 6,3V 2200uF 10x20mm, but some others too).. and i just wanted to know how old they really are.. oh.. and while we're at it.. Nippon ChemiCon datecodes? Sanyo datecodes? i guess this could get a general "cap datecode decrypting thread".. *lol* ![]() (later maybe even sticky...?)
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#2 |
Badcaps Veteran
Join Date: Jan 2007
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![]() I don't remember the details, but I think I have it in a datasheet somewhere.
The most important point though is the first digit (on Panasonic) is the year. You have to be able to assume what decade they're from, it doesn't tell. ![]() They're very hard to read, the dark red color must be somebody's idea of a joke. |
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#3 |
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Join Date: Nov 2004
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![]() would be nice if there's someone volunteering for gathering all infos...
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#4 |
Badcaps Veteran
Join Date: Jan 2007
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![]() Panasonic
3 different formats are listed in the PDF I have: Code:
(A)(B)(C)(C): A=last number of year B=month (1-9, O=Oct, N=Nov, D=Dec) C=line code in alphabet (A to Z) Code:
(A)(B)(C)(D): A=last number of year B=month (1-9, O/N/D) C=line code (A-Z) D=production date (A-Z:1st-26th, 1=27th, 2=28th, etc) Code:
(A)(B)(C)(D)(D) A=last number of year B=month (1-9, O/N/D) C=week (Greek number: I for 1st week, II for 2nd wk) D=line code (A-Z) PDF attached. I probably won't be doing any others as I don't think I have documentation for them. |
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#5 |
Grumpy Old Fart
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![]() My guess for chemicon from looking at them on mobos [that I know how old they are] is that chemicon use a 2 digit code and the first digit is the year.
For example: A 2001 vintage board has Chemicons marked 1 (2) A 2004 vintage board has Chemicons marked 4 (7) A 2007 vintage board has Chemicons marked 7 (7) - I haven't found any where the first digit doesnt make sense for the year. At first I thought the character in the ( ) was for the month but I've seen a 'k' used there so I'm not sure about that. If it is for the month then I have no idea what the code is. .
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#6 | |
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![]() Quote:
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#7 |
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![]() Sorry to revive this thread. I have a question.
I was given a microphone where the date codes appear to be late-80s. One looks like 87 and on what looks like a transformer, 88. But, wondered about the tiny Nichicon cap, looks like a tiny electrolytic cap and says "N8x" Where "x" is a number. It's a different format than on early 2000s motherboards.
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#8 |
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![]() Usually Nichicon has a standard 4-digit date code like (letter prefix) 0123. With the tiny caps (e.g. 5mm height), the 8 probably means 1988, 'x' being the month. I have a few tiny caps pulled from a 1989 Sony camcorder PCB dated between N945 and N950.
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