More On Allocation
Not long ago, I wrote a bit about allocation and parts substitution issues. Once again, I can't stress enough that if you're in a hurry, you need to be prepared with some subs ahead of time. Especially with the don't-think-about-them passives. Right now, that's where the biggest issues seem to be. IC's are starting to show supply problems too, but the passives are the big hitter at the moment.
Something else to be wary about in times like this is the prospect of counterfeit parts. Unfortunately, when supply gets tight, that's when the opportunists come out of the woodwork. Legitimate suppliers like DigiKey do a pretty good job of keeping their parts real, but unknown suppliers need to be looked at with caution. We do use some brokers here, but we qualify them carefully and keep watch on how they are doing things.
If you really, really need a specific component that has 12-week lead times everywhere and some unknown Internet supplier can get you some now, be careful. It may be a lifesaver, but be prepared to test the part to make sure it's really what you are expecting. And, if you just can't get that perfect part, maybe a slight design change is the only way to get some of that 12 weeks back.
Drivin' over Kanan, solderin' on my soul
There's people out there turnin' duds into gold