SMD marking code “JY” — 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 | |
|---|---|---|---|---|
| 2SK208-Y | TOS | SOT-23 16fa - 3a Tos | Public marking directory | |
| 2SK879-Y | TOS | SOT-323 16fa - 3a Tos | Public marking directory | |
| BAV199 | NXP | SOT-23 | Public marking directory | |
| BAV199W | PHI | SOT-323 16dl - 3a PhH | Public marking directory | |
| BAV19W | MCC | SOD-123 | Public marking directory | |
| BU4915F | ROHM* | SOP-4 | Public marking directory | |
| BU4915FWE | ROHM* | VSOF-5 | Public marking directory | |
| BU4915G | ROHM* | SSOP-5 | Public marking directory | |
| 2SJ244 | — | SOT-89 | Public marking directory | |
| DZ23C5V1 | — | SOD-23 16dg - 3a Lge | Public marking directory | |
| KTA1668-Y | — | SOT-89 | Public marking directory | |
| P4SMAJ51 | — | DO-214AC | Public marking directory | |
| PT7M6220CLC4 | — | SC-70-4 | Public marking directory | |
| PT7M6220CLC4E | — | SC-70-4 | 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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