SMD marking code “YU” — 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 | |
|---|---|---|---|---|
| BU4227F | ROHM* | SOP-4 | Public marking directory | |
| BU4227FWE | ROHM* | VSOF-5 | Public marking directory | |
| BU4227G | ROHM* | SSOP-5 | Public marking directory | |
| BZX284-C4V3 | PHI | SOD-110 | Public marking directory | |
| BZX284-C4V3 | PHI | SOD110 | Public marking directory | |
| DDZ11C | DIODES | SOD-123 | Public marking directory | |
| DDZ11CS | DIODES | SOD-323 | Public marking directory | |
| DDZ11CS | DIODES | — | Public marking directory | |
| DDZ12C | DIODES | — | Public marking directory | |
| DDZX11C | DIODES | SOT-23 | Public marking directory | |
| DDZX11CTS | DIODES | SOT-363 | Public marking directory | |
| DDZX11CW | DIODES* | SOT-23 | Public marking directory | |
| R5325N028A | RICOH* | SOT-23-6 | Public marking directory | |
| RN2117 | TOS | SOT-416 | Public marking directory | |
| RN2117FV | TOS | SOT-723 | Public marking directory | |
| RN2317 | TOS | SOT-346 | Public marking directory | |
| RN2417 | TOS | SOT-346 | Public marking directory | |
| P4SMAJ190C | — | DO-214AB | Public marking directory | |
| R1210N382D | — | SOT-23-5 | Public marking directory | |
| TV04A450KB | — | DO-214AC | Public marking directory | |
| XC6223H35BNR-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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