SMD marking code “JS” — 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 | |
|---|---|---|---|---|
| 2SD2532 | PANASONIC* | SOT-89 | Public marking directory | |
| BAS21 | FSC | SOT-23 | Public marking directory | |
| BAS21A | MCC | SOT-23 | Public marking directory | |
| BAS21H | PHI | SOD-323 | Public marking directory | |
| BAS21S | INFINEON | SOT-23 | Public marking directory | |
| BAS221 | NXP | SOD-110 | Public marking directory | |
| BAS221 | PHI | SOT23 | Public marking directory | |
| BAS40 | MCC | SOT-23 | Public marking directory | |
| BAW100 | INFINEON | SOT143 | Public marking directory | |
| BU4909F | ROHM* | SOP-4 | Public marking directory | |
| BU4909FWE | ROHM* | VSOF-5 | Public marking directory | |
| BU4909G | ROHM* | SSOP-5 | Public marking directory | |
| MAX6315US29D4-T | MAX* | SOT-143 | Public marking directory | |
| MIC810SU | MICREL | SOT-23 | Public marking directory | |
| AP1115AY-33 | — | SOT-89 | Public marking directory | |
| AP1115BY-33 | — | SOT-89 | Public marking directory | |
| ETC810SU | — | SOT-23 | Public marking directory | |
| MMSD103 | — | SOD-123 | Public marking directory | |
| P4SMAJ43 | — | DO-214AC | Public marking directory | |
| PT7M6218CLC4 | — | SC-70-4 | Public marking directory | |
| PT7M6218CLC4E | — | SC-70-4 | Public marking directory | |
| RT9166-28CXL | — | SOT-89 | 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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