SMD marking code “BK” — 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 | |
|---|---|---|---|---|
| BCP56-10 | PHI | SOT-223 | Public marking directory | |
| BCX56-10 | PHI | SOT-89 | Public marking directory | |
| BCX56-10 | PHI | SC-62/SOT89 | Public marking directory | |
| BCX71K | FSC | SOT23 | Public marking directory | |
| BD4729G | ROHM* | — | Public marking directory | |
| BZX399-C11 | PHI | SOD-323 | Public marking directory | |
| BZX399-C11 | PHI | SC-76/SOD323 | Public marking directory | |
| BZX399C11 | PHI | SOD323 | Public marking directory | |
| HSMS-281K | AGILENT | SOT-323 | Public marking directory | |
| MAX822RUS-T | MAX* | SOT-143 | Public marking directory | |
| MMBZ5249B | FSC | SOT-23 16dc - 3a Lge | Public marking directory | |
| MMSZ4684 | FSC | SOD-123 | Public marking directory | |
| P6SMBJ14AC | LITTLE* | DO-214AA | Public marking directory | |
| R3112Q191A | RICOH* | SC-82AB | Public marking directory | |
| R5421N149C | RICOH* | SOT-23-6 | Public marking directory | |
| RN5RT39AA | RICOH* | SOT-23-5 | Public marking directory | |
| SMF14A | ON | DO-219AB | Public marking directory | |
| UDZ12B | DIODES | SOD-323 | Public marking directory | |
| UDZ13B | DIODES | — | Public marking directory | |
| 2SB1323 | — | PCP | Public marking directory | |
| Anode1 | — | — | Public marking directory | |
| BCX56-10R | — | SOT-89 | Public marking directory | |
| BZT52H-C11 | — | SOD123F | Public marking directory | |
| BZX884-C13 | — | SOD-882 | Public marking directory | |
| CD214B-T14CA | — | DO-214AA | Public marking directory | |
| ELM99391B | — | SOT-89 | Public marking directory | |
| GS6333UR25D1 | — | SOT-23 | Public marking directory | |
| P4SMA22A | — | DO-214AC | Public marking directory | |
| P4SMAJ14A | — | DO-214AC | Public marking directory | |
| R1141Q291B | — | SOT-143R | Public marking directory | |
| RP130Q291A | — | SC-82AB | Public marking directory | |
| RT9169-30CV | — | SOT-23 | Public marking directory | |
| RT9169-30CX | — | SOT-89 | Public marking directory | |
| SiP6333R25D1 | — | SOT-23 | Public marking directory | |
| TV04A140J | — | DO-214AC | Public marking directory | |
| TV06B140JB | — | DO-214AA | Public marking directory | |
| V6300KSP5B | — | SOT-23-5 | Public marking directory | |
| XC6127C29GNR | — | SSOT-24 | Public marking directory | |
| XC6127N30BNR | — | SSOT-24 | Public marking directory | |
| XC6221B181N | — | SSOT-24 26vn VR4 5a Tor | Public marking directory | |
| XC6221B181NR | — | SSOT-24 | Public marking directory | |
| XC6223A271NR-G | — | SSOT-24 | Public marking directory | |
| XC62RP1702M | — | SOT-23 16cg VR1 3d Tor | Public marking directory | |
| XC62RP1702P | — | 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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