SMD marking code “8Q” — 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 | |
|---|---|---|---|---|
| MMBZ5240B | FSC | SOT-23 | Public marking directory | |
| TMPZ5240 | TOS* | SOT-23 | Public marking directory | |
| TMPZ5240R | TOS* | SOT-23R | Public marking directory | |
| UNR221L | PANASONIC* | SC-59 | Public marking directory | |
| UNR321L | PANASONIC* | SSSMini3 18ta - 3a Pan | Public marking directory | |
| UNR521L | PANASONIC* | SOT-523 | Public marking directory | |
| UNR921LJ | PANASONIC* | SC-89 | Public marking directory | |
| CMBZ5240B | — | SOT-23 | Public marking directory | |
| HMBZ5240B | — | SOT-23 | Public marking directory | |
| R1210N281A | — | SOT-23-5 | Public marking directory | |
| R3133Q44EC | — | SOT-143 | Public marking directory | |
| SMBZ5240B | — | SOT-23 16dc - 3a Sur | Public marking directory | |
| UN221L | — | SC-59 | Public marking directory | |
| UN521L | — | SOT-523 | Public marking directory | |
| UN921LJ | — | SC-89 | Public marking directory | |
| ZD5240BN3 | — | SOT-23 | 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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