yes, EOL's and ECN's pop-up a lot. Sometimes it's nothing (a pin-compatible alternative exists), sometimes it's a nightmare requiring a design change.
At my work, we have seats with SiliconExpert, this is a tool that you can use to get availability "risk assessments" for your BOM among other things like RoHS stuff and conflict minerals status.
I've never seen an "overnight global supply draining" occur for a part. There are distributors that make a living buying up millions of components throughout their lifecycle and then sell them for ~20X their cost (or higher) when the part goes EOL. It might be annoying, but these vendors can keep you going until a suitable replacement is located, designed-in, qualified and rolled out to production.
At my work, we have seats with SiliconExpert, this is a tool that you can use to get availability "risk assessments" for your BOM among other things like RoHS stuff and conflict minerals status.
I've never seen an "overnight global supply draining" occur for a part. There are distributors that make a living buying up millions of components throughout their lifecycle and then sell them for ~20X their cost (or higher) when the part goes EOL. It might be annoying, but these vendors can keep you going until a suitable replacement is located, designed-in, qualified and rolled out to production.