SMD marking code “JJ” — 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 | |
|---|---|---|---|---|
| 2SK1839 | SANYO | MCP 16fi - 3a San | Public marking directory | |
| 2SK1840 | SANYO | SOT-23 16fi - 3a San | Public marking directory | |
| BAV70 | FS | SOT-23 | Public marking directory | |
| BAV70T | PHI | SOT-416 | Public marking directory | |
| BAV70W | DIODES | — | Public marking directory | |
| BAV70WT | MCC | SOT-323 | Public marking directory | |
| BU4841F | ROHM* | SOP-4 | Public marking directory | |
| BU4841FWE | ROHM* | VSOF-5 | Public marking directory | |
| BU4841G | ROHM* | SSOP-5 | Public marking directory | |
| DZ23C2V7 | DIODES | SOD-23 16dg - 3a Lge | Public marking directory | |
| MAX6315US38D4-T | MAX* | SOT-143 | Public marking directory | |
| MIC810JU | MICREL* | SOT-23 | Public marking directory | |
| R1114Q181A | RICOH* | SOT-143R | Public marking directory | |
| 2SB1518-E | — | SOT-89 | Public marking directory | |
| 2SJ416 | — | PCP | Public marking directory | |
| AP1116Y-50 | — | SOT-89 | Public marking directory | |
| AP1119-50 | — | SOT-89-5 | Public marking directory | |
| ETC810JU | — | SOT-23 | Public marking directory | |
| RP130Q481B | — | SC-82AB | Public marking directory | |
| RT9166-15CX | — | SOT-89 | Public marking directory | |
| RT9167A-33CB | — | 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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