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Search results for "MM3Z12VB":
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Top Mark Definition
- Top mark refers to the device identification mark found on Fairchild
semiconductor packages
- Top mark is used for determining whether a product is genuine and whether it matches your order
- Certain top marks refer to manufacturing date and assembly plant, and their values are dynamic
- This search tool uses symbols, e.g. &Y, to stand for dynamic top marks
- In search results, static marks are displayed in plain text,
while dynamic marks are displayed in bold font with short descriptive text in parenthesis as link to help webpage
- Please check symbol list below for more details on dynamic top marks
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Top Mark Record Example:
(Please click on the text link beside each symbol for details)
SMA/SMB/SMC Products
Top Mark Convention Symbol List
(please click on each symbol to see more details)
| $Y | FS or  | Fairchild Semiconductor (FSC) logo graphic |
| &Z | Z | Designates the Assembly plant code |
| &4 | XXYY | 4-Digit Date code format |
| &3 | XYY | 3-Digit Date code format |
| &2 | XY | 2-Digit Date code format |
| &G | YY | Weekly Date code format |
| &T | TT | Die Run Traceability Code |
| &W | ---- | Six-Week Binary Datecoding Scheme |
| &V | --- | Eight-Week Binary Datecoding Scheme |
| &Y | ---- | Binary Calendar Year Coding Scheme |
| &C | T | Single digit Die Run Code (last digit of the two digit code) |
| &U | U | Wafer Fab Code |
| &E | | Designates Space |
| &. | . | Pin one dot (For SC70, SOT23, MLP binary marking type and WLCSP) |
| &H | Lot Number | Last 3 digit of workstream lot number |
| &O |  | Plant Code identifier on Tiny Logic Package |
| &K | KK | 2-Digits Lot Run Traceability Code |
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