Mouser Date Code Format 🔔 🎁

This is the single most misunderstood concept in electronics procurement. Let’s clarify:

This returns the Monday date of that week.

from datetime import datetime, timedelta mouser date code format

Mouser receives millions of parts from hundreds of manufacturers daily. Each manufacturer has a different date code system (some use 3 digits, some use 6, some use cryptic lot codes). By applying a uniform YYWW code, Mouser standardizes inventory age across all suppliers.

The paper packing slip included in your shipment lists the Mouser part number, manufacturer part number, quantity, and the column. This is the single most misunderstood concept in

ISO week years can have 53 weeks (e.g., 2024, 2029, 2035). Mouser labels correctly support 53. If you write a script to parse the code, ensure it accepts 53.

def mouser_date_code_to_date(code: str) -> datetime: year = 2000 + int(code[:2]) week = int(code[2:]) # ISO week: first Thursday of year determines week 1 first_thursday = datetime(year, 1, 1) while first_thursday.weekday() != 3: # Thursday = 3 first_thursday += timedelta(days=1) start_of_week1 = first_thursday - timedelta(days=3) # Monday of week 1 return start_of_week1 + timedelta(weeks=week - 1) Each manufacturer has a different date code system

When you open the outer box, each individual reel, tube, or bag of components has a smaller label. This label repeats the date code.

After 2024, use common sense: 2520 means year 2025, week 20.

XXXXXX YYWW

By mastering this distinction, you will avoid costly procurement errors, maintain better inventory control, and ensure the long-term reliability of your electronic assemblies.