Author Topic: Are there any graphs of component supply in market vs package type  (Read 467 times)

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Offline PsiTopic starter

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Are there any graphs of component supply in market vs package type
« on: September 25, 2021, 02:55:37 am »
Has anyone seen any graph or data showing component supply/availability in market vs the parts package type?

Over the past 10 years I've been noticing a reduction in availability of things like SOT23 and an increase in smaller package like DFN.
This all seems normal, as phones and other electronics push the demand for smaller packages and old packages get retired.
But it's easy to forget other packages exist and keep using what you are used to using without noticing other options may have appeared that are cheaper or more available.

It got me wondering, if you want a transistor (or any part), what package should you select for best availability in the market. Both in terms of the number of brands offering that package and stock levels of that package vs the same part in another package.
Sure, for any specific part you could search and find out, but this seems like the kind of thing you could easy graph for each component type if you had access to the Digikey database for example.

Has anyone seen graphs or data on this sort of thing?
« Last Edit: September 25, 2021, 02:59:13 am by Psi »
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Re: Has anyone seen a graph of component supply in market vs package type
« Reply #1 on: September 25, 2021, 03:04:48 am »
Anecdotally, during the ongoing parts shortage, no-lead packages were generally the first to disappear and continue to be the hardest to source, and QFPs easier. On the other hand, some of the latest chips (e.g. STM32G series, with its backwards-incompatible pinouts) have been more available, probably because people haven't included them in many designs yet. For these reasons, I've redesigned several boards to 100% QFP and switching from STM32L to STM32G. In the long run of course the trend is toward miniaturisation as you say.
 


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