SMD marking code “M4” — 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 | |
|---|---|---|---|---|
| 2SA812-M4 | MCC | SOT-23 | Public marking directory | |
| 2SA812-M5 | MCC | SOT-23 | Public marking directory | |
| BSR56 | FSC | SOT-23 | Public marking directory | |
| BZX384-B18 | PHI | SOD-323 | Public marking directory | |
| CMOZ3L3 | CSC CENTRAL SEMIC.CORP. | SOD-523 | Public marking directory | |
| KST812-M4 | FSC* | SOT-23 | Public marking directory | |
| MBD110DW | MOT | SOT-363 | Public marking directory | |
| MMBA812M4 | MOT* | SOT-23 | Public marking directory | |
| MMBZ5259B | DIODES | SOT-23 | Public marking directory | |
| MMBZ5259BW | DIODES | SOT-323 | Public marking directory | |
| MMSZ5232B | FSC | SOD-123 | Public marking directory | |
| MMSZ5259B | MCC | SOD-123 | Public marking directory | |
| MMTT2222A | DIODES | — | Public marking directory | |
| PXT2222A | MCC | SOT-89 | Public marking directory | |
| R1121N341A | RICOH* | SOT-23-5 | Public marking directory | |
| R3111N442C | RICOH* | SOT-23 | Public marking directory | |
| R3111Q241A | RICOH* | SC-82AB | Public marking directory | |
| R3116Q211A | RICOH* | SC-82AB | Public marking directory | |
| RN5RG54AA | RICOH* | SOT-23-5 | Public marking directory | |
| RN5RY441A | RICOH* | SOT-23-5 | Public marking directory | |
| TC54VN2402ECB | MIC* | SOT-23 | Public marking directory | |
| TC54VN2402MB | MIC* | SOT-89 | Public marking directory | |
| 2SA1179-4 | — | CPA 16ta - 3a San | Public marking directory | |
| 2SA1179-M4 | — | — | Public marking directory | |
| 2SA1611-4 | — | SOT-323 | Public marking directory | |
| 2SA1836-4 | — | SC-75 | Public marking directory | |
| 2SA812A-M4 | — | SOT-23 | Public marking directory | |
| ELM7634LAB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| MAS3781E | — | SSSMini3-F1 18dg - 3a Pan | Public marking directory | |
| MMSZ5259 | — | SOD-123 | Public marking directory | |
| MMSZ5259BS | — | SOD-323 | Public marking directory | |
| R1100D141C | — | — | Public marking directory | |
| R1131D141B | — | — | Public marking directory | |
| R1151N005C | — | SOT-23-6 | Public marking directory | |
| R3130N30BC8 | — | SOT-23 | Public marking directory | |
| RP104Q321B | — | SC-82AB | Public marking directory | |
| RT9168A-19CBR | — | SOT-23-5 | Public marking directory | |
| XC61CN2402M | — | SOT-23 | Public marking directory | |
| XC61CN2402N | — | SOT-143R | Public marking directory | |
| XC61CN2402P | — | SOT-89 | Public marking directory | |
| XC6223G141NR-G | — | SSOT-24 | Public marking directory | |
| XC6GN2402HR | — | 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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