SMD marking code “MB” — 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 | |
|---|---|---|---|---|
| 2SC3098 | TOS | SC-59 | Public marking directory | |
| 2SC5108-O | TOS | SC-70 | Public marking directory | |
| BF995 | INFINEON | SOT-143 | Public marking directory | |
| BF998WR | NXP | SOT-343 | Public marking directory | |
| DZ23C33 | DIODES | SOD-23 16dg - 3a Lge | Public marking directory | |
| FMMTA56R | ZETEX | SOT-23 | Public marking directory | |
| MBT3904DW9 | MOT | SOT-23 | Public marking directory | |
| R1114Q281A5 | RICOH* | SOT-143R | Public marking directory | |
| 2SA1052-B | — | SOT-23 | Public marking directory | |
| BAS70WAPT | — | SOT-323 16df - 3a Chm | Public marking directory | |
| ELM7641HDB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| KDZ5.6B | — | — | Public marking directory | |
| M1MA152A | — | SC-59 | Public marking directory | |
| M5278L56M | — | SOT-89 | Public marking directory | |
| PT7M6238CHC4 | — | SC-70-4 | Public marking directory | |
| PT7M6238CHC4E | — | SC-70-4 | Public marking directory | |
| RP130Q221D | — | SC-82AB | Public marking directory | |
| RT9168A-26CBR | — | SOT-23-5 | Public marking directory | |
| XC6120N11N | — | SSOT-24 | Public marking directory | |
| XC6127N18KNR | — | SSOT-24 | Public marking directory | |
| XC6223G211NR-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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