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Marking of electronic components, SMD Codes R21A, R21A**. LM4120AIM5X-1.8, LM4120AIM5-1.8, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| LM4120AIM5X-1.8 | R21A | MF05A | |
| LM4120AIM5-1.8 | R21A | SOT23-5 |