SMD marking code “2W” — 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 | |
|---|---|---|---|---|
| 2SC3937 | PANASONIC* | SC-70 | Public marking directory | |
| FMMT3905 | FERRANTI | SOT-23 | Public marking directory | |
| MMBT8599 | MOT | SOT-23 | Public marking directory | |
| RQ5RW29CA | RICOH* | SOT-143R | Public marking directory | |
| 2SC3704 | — | SC-59 | Public marking directory | |
| MM3Z62V | — | SOD-323 | Public marking directory | |
| R1210N321C | — | SOT-23-5 | Public marking directory | |
| RT1A3906 | — | SC-59 | Public marking directory | |
| TMPT4402 | — | SOT-23 | Public marking directory | |
| UMZ36K | — | SOT-343 | 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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