SMD marking code “YK” — 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 | |
|---|---|---|---|---|
| BCX71RK | SIEMENS | SOT-23 | Public marking directory | |
| BU4218F | ROHM* | SOP-4 | Public marking directory | |
| BU4218FWE | ROHM* | VSOF-5 | Public marking directory | |
| BU4218G | ROHM* | SSOP-5 | Public marking directory | |
| R5325N019A | RICOH* | SOT-23-6 | Public marking directory | |
| RN2110 | TOS | SOT-416 | Public marking directory | |
| RN2110FT | TOS | — | Public marking directory | |
| RN2310 | TOS | SOT-346 | Public marking directory | |
| RN2410 | TOS | SOT-346 | Public marking directory | |
| RN2510 | TOS | — | Public marking directory | |
| RN2610 | TOS | — | Public marking directory | |
| RN2710 | TOS | SOT-353 | Public marking directory | |
| RN2710JE | TOS | SOT-553 | Public marking directory | |
| RN2910 | TOS | — | Public marking directory | |
| RN2910FE | TOS | SOT-563 | Public marking directory | |
| RN5RK452A | RICOH* | SOT-23-5 | Public marking directory | |
| 15C02S | — | SMCP 16ta - 3a San | Public marking directory | |
| 15C02SS | — | SSFP 18ta - 3a San | Public marking directory | |
| 2SB1115-K | — | SOT-89 | Public marking directory | |
| CZMK30 | — | SOT-23 | Public marking directory | |
| P4SMAJ30CA | — | DO-214AC | Public marking directory | |
| R1210N292D | — | SOT-23-5 | Public marking directory | |
| SMZG3806A | — | DO-215AA | Public marking directory | |
| SMZJ3806A | — | DO-214AA | Public marking directory | |
| TV04A300JB | — | DO-214AC | Public marking directory | |
| XC6223H27BNR-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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