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SMT component life spend.

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EC

#42317

SMT component life spend. | 20 June, 2006

Hi,

We have a new product need to run very urgent and there is a capacitor brought stated was manufactured in year 2004. Pls advise can we use this capacitor......and what is the recommended.....

Apprecaite your input.....

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#42319

SMT component life spend. | 20 June, 2006

Questions are: * What is your concern about this capacitor? * Are you running a leadfree process? * Is the component leadfree?

Generally, we are ecstatic when compoents are on tape and not in plastic bags. And if they solder, well, we're dancing in the aisles. Those lil' puppies could have a 1986 date code and we wouldn't even shield our eyes.

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EC

#42324

SMT component life spend. | 21 June, 2006

Hi,

My concern is will it affect on solder joint. We are running leaded process and is no-clear.

Thanks.

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Rob

#42326

SMT component life spend. | 21 June, 2006

What's the manufacturer & part number? (some chip caps have been compliant for over 10 years)

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#42332

SMT component life spend. | 21 June, 2006

Are you worried the terminations might b oxidized? Do a dip test. If you have a solder pot carefully dip one termination of the cap into the solder. And see how well it wets. If that test doesn't satify the powers that be, then you can design a more elaborate DOE.

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#42336

SMT component life spend. | 21 June, 2006

Hello EC we place parts as old as 10 years we have no problems with them soldering

goog luck

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#42344

SMT component life spend. | 21 June, 2006

Hi,

If your worried about them being lead free components, because it's "not clear" then you should be able to ask the manufacture of them if they are lead free, as they normally trace the batch code, and manif date and will know for sure.

Most passive component manufactures seemed to just quietly change to lead free, and did not tell anyone, so the part numbers did not change. So a lot of parts need to be traced to check it for sure.

Grant

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#42346

SMT component life spend. | 21 June, 2006

On some of our legacy products, we regularly use stock as old as 1998, with no issues.

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