SMD marking code “EX” — 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 | |
|---|---|---|---|---|
| BCW65FR | INFINEON | SOT23R | Public marking directory | |
| MAX6314US50D4-T | MAX* | SOT-143 | Public marking directory | |
| SM6T39A | ST | DO-214AA | Public marking directory | |
| UNR221N | PANASONIC* | SC-59 | Public marking directory | |
| UNR321N | PANASONIC* | SSSMini3 18ta - 3a Pan | Public marking directory | |
| UNR521N | PANASONIC* | SOT-523 | Public marking directory | |
| UNR921NJ | PANASONIC* | SC-89 | Public marking directory | |
| XC61119C47ANR-G | TOREX* | SSOT-24 26gh VD3 5c Tor | Public marking directory | |
| XC6119C47ANR | TOREX* | SSOT-24 | Public marking directory | |
| 2SD2402-X | — | SOT-89 | Public marking directory | |
| AAT3515IGV-2.63-B-C | — | SOT-23-5 | Public marking directory | |
| AP1621AW | — | SOT-23-5L | Public marking directory | |
| AT1201-27X | — | SOT-23-5 | Public marking directory | |
| RT9167-46CB | — | SOT-23-5 | Public marking directory | |
| SiP810CSEUADT | — | SOT-23 | Public marking directory | |
| UN221N | — | SC-59 | Public marking directory | |
| UN521N | — | SOT-523 | Public marking directory | |
| XC6109C47AN | — | SSOT-24 | Public marking directory | |
| XC6127C49KNR | — | SSOT-24 | Public marking directory | |
| XC6127N50ENR | — | SSOT-24 | Public marking directory | |
| Z1SMA-36 | — | DO-214AC | 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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