SMD marking code “CK” — 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 | |
|---|---|---|---|---|
| BCX71JR | FERRANTI | SOT-23R | Public marking directory | |
| BCX71KR | FERRANTI | SOT-23 | Public marking directory | |
| BCX71RK | SIEMENS | SOT-23 | Public marking directory | |
| BH15LB1WG | ROHM* | SSOP-5 | Public marking directory | |
| BH15LB1WHFV | ROHM* | — | Public marking directory | |
| HSMS-282K | AGILENT | SOT-363 | Public marking directory | |
| MAX6314US28D1-T | MAX* | SOT-143 | Public marking directory | |
| MMBZ4684 | VISHAY* | SOT-23 | Public marking directory | |
| MMSZ4684 | FSC | SOD-123 | Public marking directory | |
| P4SMAJ30A | DIOTEC | DO-214AC | Public marking directory | |
| P6SMBJ30AC | LITTLE* | DO-214AA | Public marking directory | |
| R3112Q291A | RICOH* | SC-82AB | Public marking directory | |
| RN5RT49AA | RICOH* | SOT-23-5 | Public marking directory | |
| SMF30A | ON | DO-219AB | Public marking directory | |
| UNR31A4 | PANASONIC* | — | Public marking directory | |
| 15C02MH | — | MCPH3 18ta - 3a San | Public marking directory | |
| 2SD999-K | — | SOT-89 | Public marking directory | |
| AP130-25TW | — | — | Public marking directory | |
| AP130-25W | — | SOT-23 | Public marking directory | |
| AP130-25Y | — | SOT-89 | Public marking directory | |
| CD214B-T30CA | — | DO-214AA | Public marking directory | |
| CPH3210 | — | — | Public marking directory | |
| ELM99491B | — | SOT-89 | Public marking directory | |
| GS6332UR22D2 | — | SOT-23 | Public marking directory | |
| MMSZ4700 | — | SOD-123 | Public marking directory | |
| P4SMA56A | — | DO-214AC | Public marking directory | |
| R1141Q391B | — | SOT-143R | Public marking directory | |
| R5220D191A | — | — | Public marking directory | |
| RP130Q391A | — | SC-82AB | Public marking directory | |
| RT9169-18CB | — | SOT-23-5 | Public marking directory | |
| SiP6332R22D2 | — | SOT-23 | Public marking directory | |
| TV04A300J | — | DO-214AC | Public marking directory | |
| TV06B300JB | — | DO-214AA | Public marking directory | |
| V6301KSP5B | — | SOT-23-5 | Public marking directory | |
| XC6127C29HNR | — | SSOT-24 | Public marking directory | |
| XC6127N30CNR | — | SSOT-24 | Public marking directory | |
| XC6221B18BN | — | SSOT-24 26vn VR4 5a Tor | Public marking directory | |
| XC6221B18BNR | — | SSOT-24 | Public marking directory | |
| XC6223B271NR-G | — | SSOT-24 | Public marking directory | |
| XC62RP2702M | — | SOT-23 16cg VR1 3d Tor | Public marking directory | |
| XC62RP2702P | — | SOT-89 | 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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