SMD marking code “J9” — 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 | |
|---|---|---|---|---|
| BZX84C18 | FSC | SOT-23 16dc - 3a Lge | Public marking directory | |
| CMOZ36V | CSC CENTRAL SEMIC.CORP.* | SOD-523 | Public marking directory | |
| MM5Z75V | FSC | SOD-523 | Public marking directory | |
| R3111N192C | RICOH* | SOT-23 | Public marking directory | |
| R3114Q461C | RICOH* | SC-82AB | Public marking directory | |
| RN1901FS | TOS | — | Public marking directory | |
| RN1970FS | TOS | — | Public marking directory | |
| RN5RG29AA | RICOH* | SOT-23-5 | Public marking directory | |
| SST109 | SILICONIX-VISHAY | SOT-23 | Public marking directory | |
| ZC829 | ZETEX* | SOT-23 | Public marking directory | |
| CHT846BPT-S | — | SOT-23 16ta - 3a Chm | Public marking directory | |
| ELM7639HAB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| RP103Q271D | — | SC-82AB | Public marking directory | |
| RT9166-33CXL | — | SOT-89 | Public marking directory | |
| RT9167A-24CB | — | SOT-23-5 | 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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