Request you to share the shelf-life (How long we can store with proper storage conditions) for ST10F276Z5T3 Microcontroller. Also please share recommended storage conditions for optimum shelf-life.

[VPall.1]

ST10F276Z5T3: Shelf-life, recommende storage conditions

[Tesla DeLorean]

Try your local sales office.

Vacuum sealed, in a cool and dry location, one could surely expect multiple decades..