Hello Juan! The industry expectation for the solderability of a component
is 1 year and the majority of component suppliers will provide components
with a solderability guarantee for that time period. The 2 year time period
you mentioned was an old MIL-STD-2000 clause that stated you could extend
the 1 year solderability life by conducting a solderability test and if the
component had acceptable test results, extend the solderability life the
additional year.

Dave Hillman
Rockwell Collins
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On Thu, Jul 28, 2016 at 2:15 AM, Juan T. Marugan <[log in to unmask]> wrote:

> Good morning,
>
> Regarding the solderability requirements for surface mount components
> (BGAs, reeled components…), I’d like to know your opinion about which could
> be the reasonable restriction to be flown down to a manufacturer/supplier
> in a purchase order.
>
> In the past, we applied a restriction of 2 years from the DoM
> (MIL-STD-2000?) but it is probably out of date.
>
> Can you provide us any suggestion? Thank you so much.
>
> Juan Tomás Marugán
> Indra Sistemas SA
> Spain
>