SMD marking code “K3” — 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 | |
|---|---|---|---|---|
| 2SC3143-3 | TOS* | SOT-23 | Public marking directory | |
| 2SK2839 | TOS | SOT-89 | Public marking directory | |
| AH183W | DIODES* | SOT-23 | Public marking directory | |
| BCW81 | PHI | SOT23 | Public marking directory | |
| HSMP-3833 | HP | SOT-23 | Public marking directory | |
| MAX810TTR | ON | SOT-23 | Public marking directory | |
| MMSZ5253B | FSC | SOD-123 | Public marking directory | |
| R3111N232C | RICOH* | SOT-23 | Public marking directory | |
| R3114Q501C | RICOH* | SC-82AB | Public marking directory | |
| R5426D104BB | RICOH* | — | Public marking directory | |
| R5426N104BB | RICOH* | SOT-23-6 | Public marking directory | |
| RN2964FS | TOS | — | Public marking directory | |
| RN5RG33AA | RICOH* | SOT-23-5 | Public marking directory | |
| RN5RY231A | RICOH* | SOT-23-5 | Public marking directory | |
| 2SK57-3 | — | SOT-23 16fa - 3a Nec | Public marking directory | |
| A3/K4 | — | — | Public marking directory | |
| BB145C | — | SOD-523 | Public marking directory | |
| BZX384-B3V0 | — | SOD-323 | Public marking directory | |
| ELM7643HAB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| MMSZ52353 | — | SOD-123 | Public marking directory | |
| R3130N46EA5 | — | SOT-23 | Public marking directory | |
| RP103Q301D | — | SC-82AB | Public marking directory | |
| RT9167A-18CBR | — | SOT-23-5 | Public marking directory | |
| XC6223E131NR-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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