SMD marking code “IS” — 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 | |
|---|---|---|---|---|
| MAX6315US29D3-T | MAX | SOT-143 | Public marking directory | |
| MIC809SU | MICREL* | SOT-23 | Public marking directory | |
| 2SB1220-S | — | SOT-323 | Public marking directory | |
| 2SB1463-S | — | SOT-23 | Public marking directory | |
| 2SB792-S | — | SC-59 | Public marking directory | |
| 2SC3722K-S | — | SOT-346 | Public marking directory | |
| ETC809SU | — | SOT-23 | Public marking directory | |
| P4SMAJ18 | — | DO-214AB | 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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