TRANSDUCER DATE CODE AND WARRANTY NUMBERING SYSTEM APPLICATION NOTE

PublishTime：2023-09-11

●Knowles identifies the week and year of manufacturing, warranty period, lot number, and sub-lot number. Marking is based on the size of the transducer. Nearly all products are laser marked as illustrated at the top of the next page. The exact location of each field may vary depending upon the product family and model. There is a maximum of 12 characters per line, using 2 or 3 lines.
●Where product size restricts the amount of information that can be legibly marked, a maximum of 11 characters is used per line with 5 characters representing the actual model number.
●Models with 2D barcode will be identified by only 6 characters as the balance characters will be contained in the 2D Barcode serial numbers.
●Please note that sample units or pre-production prototype units will be marked with different manufacturing codes and are not covered under Knowles standard warranty policies.

Brand of Product：	Knowles
Part#：
Product Category：	TRANSDUCER More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2021/7/19
Version Number：
Data Encoding：	AN-10
Data Size：	764 KB

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