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Marking of electronic components, SMD Codes X4XX, X4XX**. R1210N242C, APX809-40SAG, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| R1210N242C | X4XX | SOT-23-5 | |
| APX809-40SAG | X4XXX | SOT23 |