SMD marking code “AB” — 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 | |
|---|---|---|---|---|
| BAR50-02L | INFINEON | — | Public marking directory | |
| BCW60B | PHI | SOT-23 | Public marking directory | |
| BCX51-6 | INFINEON | SOT-89 | Public marking directory | |
| BZX884-B6V2 | NXP | SOD-882 | Public marking directory | |
| MAX6314US49D1-T | MAX* | SOT-143 | Public marking directory | |
| MMBD4448HTS | DIODES | SOT-523 | Public marking directory | |
| MMBD4448HTW | DIODES | — | Public marking directory | |
| MMBZ5226B | FSC | SOT-23 16dc - 3a Lge | Public marking directory | |
| MMSZ5222B | MCC | SOD-123 | Public marking directory | |
| PI74ST1G126CX | PERICOM* | SC-70-5 | Public marking directory | |
| PI74ST1G126TX | PERICOM* | SOT-23-5 | Public marking directory | |
| RN5RT21AA | RICOH* | SOT-23-5 | Public marking directory | |
| ZMV830A | ZETEX | SOD-323 | Public marking directory | |
| 2SD1101B | — | SC-59A 16ta - 3a Ren | Public marking directory | |
| 2SD1366-AB | — | SOT-89 | Public marking directory | |
| 74AHC1G02 | — | SOT-353 | Public marking directory | |
| AP431IAY | — | SOT-89-3L | Public marking directory | |
| BCX51-06 | — | SOT-89 | Public marking directory | |
| ELM99211B | — | SOT-89 | Public marking directory | |
| MAZU200-H | — | SOT-346 | Public marking directory | |
| RP130Q131A | — | SC-82AB | Public marking directory | |
| RT9161-29CV | — | SOT-23 | Public marking directory | |
| RT9161-38CX | — | SOT-89 | Public marking directory | |
| SiP823MEU | — | SOT-23-5 | Public marking directory | |
| XC6127C17FNR | — | SSOT-24 | Public marking directory | |
| XC6127N18ANR | — | SSOT-24 | Public marking directory | |
| XC6221A12BN | — | SSOT-24 26vn VR4 5a Tor | Public marking directory | |
| XC6221A12BNR | — | SSOT-24 | Public marking directory | |
| XC6224A191NR | — | 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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