SMD marking code “EI” — 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 | |
|---|---|---|---|---|
| MAX6314US37D3-T | MAX* | SOT-143 | Public marking directory | |
| UNR211M | PANASONIC* | SC-59 | Public marking directory | |
| UNR511M | PANASONIC* | SOT-523 | Public marking directory | |
| UNR911MJ | PANASONIC* | SC-89 | Public marking directory | |
| AP1703CTW | — | — | Public marking directory | |
| AP1703CW | — | SOT-23-3L | Public marking directory | |
| SiP809CLEUEDT | — | SOT-23 | Public marking directory | |
| TS809RCXC | — | SOT-23 | Public marking directory | |
| UN211M | — | SC-59 | Public marking directory | |
| UN511M | — | SOT-523 | 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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