SMD marking code “FQ” — 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 | |
|---|---|---|---|---|
| 2PA1576Q | NEXPERIA | SOT-323 16ta - 3a PhH | Public marking directory | |
| 2SA1037-Q | MCC | SOT-23 | Public marking directory | |
| 2SA1037-R | MCC | SOT-23 | Public marking directory | |
| 2SA1037AK-Q | ROHM | SC-59 | Public marking directory | |
| 2SA1576A-Q | MCC | SOT-323 | Public marking directory | |
| 2SA1576A-R | MCC | SOT-323 | Public marking directory | |
| BD4934FVE | ROHM* | VSOF-5 | Public marking directory | |
| BD4934G | ROHM* | SSOP-5 | Public marking directory | |
| MAX6314US31D4-T | MAX* | SOT-143 | Public marking directory | |
| R1112N241B | RICOH* | SOT-23-5 | Public marking directory | |
| SM6T68A | ST | DO-214AA | Public marking directory | |
| 2SA1576-Q | — | SC-70 | Public marking directory | |
| 2SA1774-Q | — | SC-75A | Public marking directory | |
| 2SA1774EB-Q | — | EMT3F 18ta - 3a Rhm | Public marking directory | |
| 2SA177A-Q | — | SOT-416 | Public marking directory | |
| 2SA2029-Q | — | — | Public marking directory | |
| 2SB1610 | — | SOT-23 | Public marking directory | |
| 2SB1618 | — | SOT-323 16ta - 3a Pan | Public marking directory | |
| AAT3528ICX-2.93-200 | — | SOT-143 | Public marking directory | |
| L2SA1774QT1 | — | SC-89 | Public marking directory | |
| RT9818C-22CV | — | SOT-23 16vda VD6 3a Rct | Public marking directory | |
| Z1SMA-110 | — | DO-214AC | 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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