# How to Read Cosel Lot Code to Get the Date Code

**URL:** <https://forum.digikey.com/t/how-to-read-cosel-lot-code-to-get-the-date-code/42548>\
**Category:** Power Supplies (board mount)\
**Tags:** part-numbering, cosel-usa-inc, faqs\
**Created:** [June 25, 2024, 9:50pm UTC](https://forum.digikey.com/t/how-to-read-cosel-lot-code-to-get-the-date-code/42548 "2024-06-25T21:50:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![shawn\_adams](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/shawn_adams/32/25203_2.png) [@shawn\_adams](https://forum.digikey.com/u/shawn_adams)\
**Post date:** [June 25, 2024, 9:50pm UTC](https://forum.digikey.com/t/how-to-read-cosel-lot-code-to-get-the-date-code/42548/1 "2024-06-25T21:50:12Z")

</div>

We are often asked how to read the date code embedded within the lot code of [Cosel USA, Inc.](https://www.digikey.com/en/supplier-centers/cosel) products. Cosel has provided this information on an [FAQ](https://en.cosel.co.jp/technical/qanda/a0051.html) on their website. The lot code breaks down as seen below.

 ![image](https://global.discourse-cdn.com/digikey/original/3X/f/a/fa60f0e62fef10c48ca90093f36eca95ca161fa8.png)  
 ![image](https://global.discourse-cdn.com/digikey/original/3X/d/1/d1c07cb71dd2e4156456a726e7d9937f2d980cce.png)