SMD marking code “W9” — 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 | |
|---|---|---|---|---|
| BD46411G | ROHM* | SSOP-5 | Public marking directory | |
| BZT52C5V6LP | DIODES | — | Public marking directory | |
| BZT52C5V6S | MCC | SOD-323 | Public marking directory | |
| BZT52C5V6T | DIODES | — | Public marking directory | |
| BZT52C5V6T | MCC | SOD-523 | Public marking directory | |
| BZT52C6V2 | DIODES | — | Public marking directory | |
| BZV49-C4V3 | PHI | SOT-89 | Public marking directory | |
| BZV49C4V3 | ZETEX | SOT89 | Public marking directory | |
| BZX384-C5V1 | PHI | SOD-323 | Public marking directory | |
| BZX84-A4V3 | PHI | SOT-23 | Public marking directory | |
| BZX84-B4V3 | PHI | SOT-23 | Public marking directory | |
| BZX84-C4V3 | PHI | SOT-23 | Public marking directory | |
| BZX84-C5V1 | PHI | SOT-23 | Public marking directory | |
| R3111Q391C | RICOH* | SC-82AB | Public marking directory | |
| R5325N009B | RICOH* | SOT-23-6 | Public marking directory | |
| BZT52-C5V1 | — | SOD-123 | Public marking directory | |
| BZT52-C5V1S | — | SOD-323 | Public marking directory | |
| BZT52-C5V6 | — | SOD-123 | Public marking directory | |
| BZT52-C5V6S | — | SOD-323 | Public marking directory | |
| BZX84-C5V1W | — | SOT-323 | Public marking directory | |
| BZX88-C4V3 | — | SOT-323 | Public marking directory | |
| DPA05 | — | CP 16dl - 3a San | Public marking directory | |
| ECG508SM | — | SOT-23 | Public marking directory | |
| ELM7639LBB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| FMW9 | — | SOT-23-5 | Public marking directory | |
| MM3Z5V6 | — | SOD-323 | Public marking directory | |
| NTE508SM | — | SOT-23 | Public marking directory | |
| R1163D191D | — | — | Public marking directory | |
| R1210N391D | — | 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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