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Marking of electronic components, SMD Codes WNxx, WNxx**. R1210N521D, RN5RK321A, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| R1210N521D | WNxx | SOT-23-5 | |
| RN5RK321A | WNxx | SOT-23-5 |