SMD marking code “81E” — 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 | |
|---|---|---|---|---|
| CMPZ5254B | CSC CENTRAL SEMIC.CORP. | SOT-23 16dc - 3a Cen | Public marking directory | |
| MMBZ5254B | FS | SOT-23 16dc - 3a,3c F,Mot | Public marking directory | |
| PMBZ5254B | PHI | SOT-23 | Public marking directory | |
| PMBZ5254B | PHI | SOT23 | Public marking directory | |
| TMPZ5254 | TOS* | SOT-23 16dc - 3a All | Public marking directory | |
| TMPZ5254R | TOS* | SOT-23R | Public marking directory | |
| XC6112A245MR | TOREX* | SOT-23-5 | Public marking directory | |
| CMBZ5254B | — | SOT-23 16dc - 3a Mei | Public marking directory | |
| HMBZ5254B | — | SOT-23 16dc - 3a Hsn | Public marking directory | |
| SMBZ5254B | — | SOT-23 16dc - 3a Sur | Public marking directory | |
| ZD5254BN3 | — | 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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