SMD marking code “2A” — 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 | |
|---|---|---|---|---|
| FMMT3906 | DIODESINC | SOT-23 | Public marking directory | |
| KST3906 | SMG | SOT-23 | Public marking directory | |
| MMBT3906 | FSC | SOT-23 | Public marking directory | |
| MMBT3906L | MOT | SOT23 | Public marking directory | |
| MMBT3906T | MCC | SOT-523 | Public marking directory | |
| MMBT3906W | MOT | SOT-323 | Public marking directory | |
| PXT3906 | PHI | SOT-89 | Public marking directory | |
| RQ5RW20AA | RICOH* | SOT-143R | Public marking directory | |
| SBR05U20LP | DIODES | — | Public marking directory | |
| SMBT3906 | INFINEON | SOT-23 16ta - 3a Inf | Public marking directory | |
| SXT3906 | SIEMENS | SOT-89 | Public marking directory | |
| 2T665A9 | — | SOT-89 | Public marking directory | |
| CMBT3906 | — | SOT-23 | Public marking directory | |
| KIA7219F | — | SOT-89 | Public marking directory | |
| MM3Z9V1 | — | SOD-323 | Public marking directory | |
| R1161D181A5 | — | — | Public marking directory | |
| R3132Q30EA | — | SOT-143 | Public marking directory | |
| TMPT3906 | — | SOT-23 | Public marking directory | |
| XC6127N15CNR | — | SSOT-24 | Public marking directory | |
| XC6213B20ANR | — | SSOT-24 | Public marking directory | |
| XC6221C18BNR | — | SSOT-24 | Public marking directory | |
| YTS3906 | — | SOT-23 | Public marking directory | |
| Z02W2.0V | — | SOT-23 | 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.
Can't match your marking?
Send us the code, package and a photo — our team helps identify the part.
Ask our team