I recently made a couple parts order from Mouser (my usual source). Back in November part of an order was for qty 4 913-AS6C62256A-70PCN. These are Alliance 32KBx8 Static RAM in 28-pin DIP format. I finished another SBC board the other day and grabbed the next chip, put it in and did some initial tests. Turns out it's a bad chip! Memory location offset $61F6 is stuck with $F6 in memory... it can't be changed. The rest of the chip is okay, but it's a no-go for the SBC.
My most recent Mouser order included a universal wall-wart power supply. It has multiple slide-on power plugs for various countries. Part number is 418-TRG10R05036E03VI. Unfortunately somebody either forgot to include ALL of the slide-on power plugs or they got pinched somewhere along the line. So I have a lovely supply that's useless so far.
I'm working with Mouser to get these issues sorted out, hopefully it will be somewhat painless, we'll see. I'm now starting to test parts that I get in quickly.... as I ordered a FTDI UB-232R over a year ago. I finally got around to trying to use it for some prototype work and discovered it's a dead adapter. As the time from order/receive to attempted use was over a year, there's nothing I can do about it, so that turned out to be wasted $$. Wondering if anyone else has had any similar experiences with new defective parts lately. Ah... the global economy