SMD marking code “X9” — 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 | |
|---|---|---|---|---|
| 1SS398 | TOS | SOT-23 | Public marking directory | |
| BD46332G | ROHM* | SSOP-5 | Public marking directory | |
| BZX84C33 | FSC | SOT-23 16dc - 3a Lge | Public marking directory | |
| CMDZ5229B | CSC CENTRAL SEMIC.CORP.* | SOD-323 | Public marking directory | |
| R3111Q491C | RICOH* | SC-82AB | Public marking directory | |
| IMX9 | — | SOT-363 | Public marking directory | |
| R1163D291D | — | — | Public marking directory | |
| R1210N292C | — | SOT-23-5 | Public marking directory | |
| XC6223G19BNR-G | — | SSOT-24 | Public marking directory | |
| ZD5235BSG | — | SOD-323-S | 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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