![Automotive MCU EOL Mid-Program: Last-Time-Buy Math, Cross-Reference Traps, and Requalification Scope]()
Automotive MCU EOL Mid-Program: Last-Time-Buy Math, Cross-Reference Traps, and Requalification Scope
Solution Jul 28, 2026
When an automotive microcontroller faces mid-program EOL, engineering and sourcing teams must act within 14 days. This practical playbook covers reading PCN notices, calculating Last-Time-Buy quantities—including long post-production service obligations—navigating cross-reference pitfalls, determining AEC-Q100/PPAP requalification scope, and safely sourcing obsolete components on the open market with complete quality and traceability controls.