Mouser Date Code Format Official

Every Mouser shipping box has a large barcode label. Near the bottom-right section, you will find a field labeled showing the YYWW format.

The two most common formats you’ll encounter: mouser date code format

XXXXXX YYWW

To ensure that you're working with fresh and reliable components, follow these best practices: Every Mouser shipping box has a large barcode label

Mouser doesn’t have a single fixed date code format, but their labels use predictable YYWW/YYDDD structures. For component age, rely on the original manufacturer’s marking. Mouser’s system is good for logistics, not semiconductor aging analysis. not semiconductor aging analysis.