High-reliability products
For Qualified Manufacturers List (QML) Class Q & Class V devices
TI.com offers date code selection for a service fee. These hermetically sealed devices use a lot date code in conjunction with the full device part number for traceability. You’ll find date code selections in the drop down menu based on the quantity entered and available inventory.
Screenshot of the HiRel date code selection options
According to U.S. military performance specification MIL-PRF-38535, the lot date code is formatted as a four-character year-year-week-week (YYWW) plus an optional suffix (YYWWAA) to indicate multiple lots of the same device assembled in the same week or a sub-lot split; for example, 2010A, 2010B or 2010BA. It is possible to use the associated YYWWAA for traceability to a specific lot and associated quality conformance inspection (QCI) reports.
Note that:
- The associated YYWW date code is for inventory age control only and does not support traceability to an individual lot.
- TI lot numbers are system-assigned.
- TI does not support customer pre-assigned lot control number marking.
- QML device marking is defined by MIL-PRF-38535.
- TI defines device marking for non-QML products.
- TI does not support marking with a unique item identification (UID) per military standard (MIL-STD)-130, Department of Defense Standard Practice Identification Marking of U.S. Military Property.
Date code selection details
The table below lists the date code selections available for hermetically sealed QML devices ordered through TI.com
| Date Code | Description |
|---|---|
| SLDC-QMLV | Single lot date code for Class V or Class S devices only. |
| SLDC-QMLQ | Single lot date code for Class B or Class Q devices. |
| SPECIFIC-DC | For customers requesting one specific lot date code for Class B, Q, S and V. |
| SLDC-5Year | Single lot date code less than 5 years for Class B, Q, S and V. |
| SLDC-2Year | Single lot date code less than 2 years for Class B, Q, S and V. |
| SLDC-1Year | Single lot date code less than 1 year for Class B, Q, S and V. |
| DC-5Year | Date code less than 5 year for Class B, Q, S and V. Does not include Single lot date code. |
| DC-2Year | Date code less than 2 year for Class B, Q, S and V. Does not include Single lot date code. |
| DC-1Year | Date code less than 1 year for Class B, Q, S and V. Does not include Single lot date code. |
Product conformance reports
TI uses process measurement and monitoring for manufacturing process control, with statistical process control (SPC) in all phases of manufacturing. For TI QML devices, see “QML Flow, Its Importance, and Obtaining Lot Information” and “QML Process Optimizations.” TI performs quality (QCI) in accordance with MIL-PRF-38535 and MIL-STD-883 only on Class Q and Class V devices. A QCI includes checking each individual lot for conformance, by creating a processing conformance report before shipments from the manufacturing facility to the product distribution center. Lot-specific reports for QML Class Q and Class V devices are defined in “QML Flow, Its Importance, and Obtaining Lot Information”. TI does not make quality conformance inspected physical samples available to customers.
You can find date code and PCR lot information at the beginning of the QCI paperwork as follows:
HiRel assembly code selection options
If you need any additional information to make your purchase on TI.com, please contact the TI Customer service center