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Marking of electronic components, SMD Codes A57, A57**. OPA657N, OPA657NB, R3111D571A, R3111H571A, R3111D571C, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| OPA657N | A57 | SOT-23-5 | |
| OPA657NB | A57 | SOT-23-5 | |
| R3111D571A | A57Axx | SON1408-3 | |
| R3111H571A | A57Axx | SOT-89 | |
| R3111D571C | A57Cxx | SON1408-3 | |
| R3111H571C | A57Cxx | SOT-89 |