SMD marking code “B3” — 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 | |
|---|---|---|---|---|
| 1PS301 | NXP | SC-70 | Public marking directory | |
| 1SS184 | MCC | SC-59 | Public marking directory | Request quote |
| 1SS184 | MCC | SOT-23 | Public marking directory | Request quote |
| 1SS301 | TOS | SOT-323 | Public marking directory | |
| 1SS361 | TOS | SOT-23 | Public marking directory | |
| 2SC4175-3 | NEC* | SOT-323 | Public marking directory | |
| BD4727G | ROHM* | — | Public marking directory | |
| BZX399-C2V2 | PHI | SOD-323 | Public marking directory | |
| BZX399-C2V2 | PHI | SC-76/SOD323 | Public marking directory | |
| BZX399C2V2 | PHI* | SOD323 | Public marking directory | |
| BZX79-B2V7 | PHI | SOD27 (DO35) | Public marking directory | |
| FSS24 | SANYO* | DO-214AA | Public marking directory | |
| HSMS-2813 | AGILENT | SOT-23 | Public marking directory | |
| HSMS-281E | AGILENT | SOT-323 | Public marking directory | |
| MBR0530 | FSC | SOD-123 | Public marking directory | |
| MBRA130 | ON* | — | Public marking directory | |
| MMBD717L | MOT | SOT323 | Public marking directory | |
| R3111N132A | RICOH* | SOT-23 | Public marking directory | |
| R3113D231A | RICOH* | — | Public marking directory | |
| R3114Q201A | RICOH* | SC-82AB | Public marking directory | |
| R5421N131C | RICOH* | SOT-23-6 | Public marking directory | |
| RT9169-14CX | RICHTEK TECHNOLOGY, CORP. | SOT-89 | Public marking directory | |
| TC1015-3.0VRX | MIC* | SOT-23-5 | Public marking directory | |
| 1SS361F | — | SOT-23F | Public marking directory | |
| 2SC1621-3 | — | SOT-23 | Public marking directory | |
| 2SC4931-3 | — | SMCP | Public marking directory | |
| AP432W | — | SOT-23-3L | Public marking directory | |
| BAS70CPT | — | SOT-23 16dg - 3a Chm | Public marking directory | |
| BZT52H-C2V4 | — | SOD123F | Public marking directory | |
| BZX884-C3V0 | — | SOD-882 | Public marking directory | |
| ELM9713NAB | — | SOT-89 | Public marking directory | |
| ELM9833AB | — | SOT-89 | Public marking directory | |
| HVC369B | — | UFP | Public marking directory | |
| MMBD717 | — | SOT-323 | Public marking directory | |
| MSCD053 | — | 0805 | Public marking directory | |
| R1111N331A | — | SOT-23-5 | Public marking directory | |
| R1140Q231B | — | SOT-143R | Public marking directory | |
| R1160D131A | — | — | Public marking directory | |
| R1180Q231B | — | SC-82AB | Public marking directory | |
| R3130N23EC | — | SOT-23 | Public marking directory | |
| RN5VD13AA | — | SOT-23-5 | Public marking directory | |
| RT9169-14CV | — | SOT-23 | Public marking directory | |
| UDZ2V4B | — | SOD-323 | Public marking directory | |
| XC6223A131NR-G | — | SSOT-24 | Public marking directory | |
| XC6GC1302HR | — | USP-3 | 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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