SMD marking code “UM” — 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 | |
|---|---|---|---|---|
| BD45452G | ROHM* | SSOP-5 | Public marking directory | |
| SM4T24CA | ST* | SOD-6 | Public marking directory | |
| US1M | VISHAY | DO-214AC | Public marking directory | |
| 2SC3618-M | — | SOT-89 | Public marking directory | |
| CD214A-T15CA | — | DO-214AC | Public marking directory | |
| P4SMAJ15AC | — | DO-214AB | Public marking directory | |
| P4SMAJ440CA | — | DO-214AC | Public marking directory | |
| PT7M6314US35D3 | — | SOT-143 | Public marking directory | |
| XC6127C34JNR | — | SSOT-24 | Public marking directory | |
| XC6215B502NR | — | SSOT-24 | Public marking directory | |
| XC6223E29BNR-G | — | SSOT-24 | 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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