SMD marking code “S4” — 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 | |
|---|---|---|---|---|
| 1PS76SB40 | PHI | SOD-323 | Public marking directory | |
| 1PS76SB40 | PHI | SC-76/SOD323 | Public marking directory | |
| 1PS89SS04 | PHI | SOT-490 | Public marking directory | |
| 1PS89SS04 | PHI | SC-89/SOT490 | Public marking directory | |
| 1SS367 | TOS | SOD-123 | Public marking directory | |
| 1SS373 | TOS | SOD-323 | Public marking directory | |
| 1SS389 | MCC | SOD-523 | Public marking directory | |
| 1SS400 | MCC | SOD-523 | Public marking directory | |
| BBY62 | PHI | SOT-143 | Public marking directory | |
| BBY62 | PHI | SOT143 | Public marking directory | |
| BFQ31A | FERRANTI | SOT-23 | Public marking directory | |
| R1121N341B | RICOH* | SOT-23-5 | Public marking directory | |
| R3116Q211C | RICOH* | SC-82AB | Public marking directory | |
| SD103AW | DIODES | SOD-123 | Public marking directory | |
| SD103AWS | DIODES | — | Public marking directory | |
| SD103AWS | MCC | SOD-323 | Public marking directory | |
| SD103BW | DIODES | — | Public marking directory | |
| SD103BW | MCC | SOD-123 | Public marking directory | |
| SD103BWS | DIODES | SOD-323 | Public marking directory | |
| SD103BWS | DIODES | — | Public marking directory | |
| SD103CW | DIODES | SOD-123 | Public marking directory | |
| SD103CW | DIODES | — | Public marking directory | |
| SD103CWS | MCC | SOD-323 | Public marking directory | |
| SST174 | VISHAY | SOT-23 | Public marking directory | |
| 2SA813-4 | — | SOT-23 16ta - 3a Nec | Public marking directory | |
| 2SC3361-4 | — | SOT-23 | Public marking directory | |
| BBQ31A | — | SOT-23 | Public marking directory | |
| BSV37 | — | SOT-323 | Public marking directory | |
| ELM7634HCB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| ELM9744CAB | — | SOT-89 | Public marking directory | |
| FMS4 | — | SOT-23-5 | Public marking directory | |
| FS2G | — | DO-214AA | Public marking directory | |
| KA4A4L | — | SC-75 | Public marking directory | |
| KTA2014-4 | — | SOT-323 | Public marking directory | |
| KTA2014E-4 | — | ESM 18ta - 3f Kec | Public marking directory | |
| KTA2014F-4 | — | TFSM 19ta - 3f Kec | Public marking directory | |
| KTA2014V-4 | — | VSM 18ta - 3f Kec | Public marking directory | |
| R1131D141D | — | — | Public marking directory | |
| R1225N182D | — | SOT-23-6W 33so | Public marking directory | |
| R3130N30DA8 | — | SOT-23 | Public marking directory | |
| RP104Q321D | — | SC-82AB | Public marking directory | |
| XC6223C14BNR-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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