Every active hardware program runs into the same problem eventually: a critical component goes obsolete, a whole package gets EOL'd by the manufacturer, or a silicon shortage pushes lead times past your ship date. The spec doesn't care. Your customer doesn't care. The part needs to be on the line.
We run a three-channel sourcing model: authorized distribution for routine parts (Arrow, Digi-Key, Mouser, Future, TTI, Avnet), a verified excess-inventory network for allocated and obsolete components, and a global component sourcing channel for parts that move only through specialized trading networks not accessible to direct purchasers. Every channel is vetted and every lot comes with traceability documentation.
Counterfeit prevention is built into the workflow — lot and date code verification, packaging inspection, visual acceptance to IDEA-STD-1010, and testing escalation (X-ray, decapsulation, electrical functional) when the source or part history warrants it. If we can't verify authenticity, we don't buy it.