Radial Electrolytic Capacitor Date Code Reading Instructions

[yanz]

Panasonic's :

http://www.panasonic.com/industrial/.../ecnotices.htm

Please share any information/link you have about others cap manufacturers (Rubycon, Chemicon, Sanyo, Samxon, Elna, etc..).

[Dale Cepull]

Re: Radial Electrolytic Capacitor Date Code Reading Instructions

These links are helpful, but they do not apply to the type of aluminum electrolytic I have. It is a PANASONIC(Matsushita) ECOS1CP103BA. This is their TS-UP series. The only numbers on the part that look like a datecode are:

7342(M)

Does anyone know how to decode this?

Thanks

[yanz]

Re: Radial Electrolytic Capacitor Date Code Reading Instructions

Hmmm, I'm curious about that too. I look at my panasonic TS-HA 470uF 250V

[M] CE(M)
HA 105C
470uF
250V
JAPAN
7710


The "7710" is in white writing. One will suspect it was made in 1997. To be honest im not sure how to decode that 4 numbers.

[PCBONEZ]

Re: Radial Electrolytic Capacitor Date Code Reading Instructions

77 = 1997 or 2007 , July

[yanz]

Re: Radial Electrolytic Capacitor Date Code Reading Instructions

1997 then, i believe.

[capguru]

Re: Radial Electrolytic Capacitor Date Code Reading Instructions

typical capacitor date codes are in the YYWW (4 digit) format
YY represents the last 2 digits of the year
WW represents the week of that year

so 8714 means
1987
14th week

hope this helps