SMD marking code “3M” — candidate parts
Small packages rarely print the full part number. The marking below maps to these part numbers — verify against the package, pin count and the manufacturer's datasheet before ordering.
Candidate part numbers
| Part number | Manufacturer | Package | Mapping basis | |
|---|---|---|---|---|
| BC858 | PHI | SOT-23 | Public marking directory | |
| FMMT5087R | FERRANTI | SOT-23 | Public marking directory | |
| IMP161MEUS | IMP* | SOT-143 | Public marking directory | |
| NSF2250WT1 | ON | SOT-323 | Public marking directory | |
| R3111N431C | RICOH* | SOT-23-5 | Public marking directory | |
| RH5RE53AA | RICOH* | SOT-89 | Public marking directory | |
| RQ5RW31CA | RICOH* | SOT-143R | Public marking directory | |
| 2SC3829 | — | SC-59 | Public marking directory | |
| 2SC4808 | — | SOT-416 16ta - 3a Pan | Public marking directory | |
| CH715WPT | — | SOT-416 16df - 3a Chm | Public marking directory | |
| R1161D331D | — | — | Public marking directory | |
| R3131N29BC3 | — | SOT-23 | Public marking directory | |
| R3133Q41EA | — | SOT-143 | Public marking directory | |
| XC6127N33DNR | — | SSOT-24 | Public marking directory | |
| XC6213B39ANR | — | SSOT-24 | Public marking directory | |
| XC6217D202NR | — | SSOT-24 | Public marking directory | |
| XC6223A361NR-G | — | SSOT-24 | Public marking directory |
How these mappings are compiled: from public SMD marking directories and from our own stock records (marked Stock-record verified). We keep the original reference of every row internally so any mapping can be traced on request.
Markings are indicative only: the same code can denote different parts across manufacturers and packages. Always confirm with the physical batch marking and the original datasheet.
* Manufacturer derived from the part-number family (some directory entries carry no manufacturer) — treat it as a lead, not a datasheet fact.
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