SMD marking code “18” — 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 | |
|---|---|---|---|---|
| BFP181T | VISHAY-TELEFUNKEN | SOT-143 | Public marking directory | |
| CMZ18 | TOS | — | Public marking directory | |
| MAZ8180 | PANASONIC* | SC-76 | Public marking directory | |
| MAZS180 | PANASONIC* | SC-79 | Public marking directory | |
| MAZS1800L | PANASONIC* | SC-79 | Public marking directory | |
| MM5Z33V | FSC | SOD-523 | Public marking directory | |
| MRF9411B | MOT* | SOT-143 | Public marking directory | |
| P6SMBJ18 | LITTLE* | DO-214AA | Public marking directory | |
| PDTC143ZK | PHI | SC-59 | Public marking directory | |
| PDTC143ZK | PHI | SC-59/SOT346 | Public marking directory | |
| R3111Q181B | RICOH* | SC-82AB | Public marking directory | |
| ELM9818BB | — | SOT-23 16cg VR1 3d Elm | Public marking directory | |
| KDZ18EV | — | SOD-523 | Public marking directory | |
| KDZ18V | — | SOD-323 | Public marking directory | |
| MAZ5180 | — | — | Public marking directory | |
| MAZY180 | — | NMiniP2 | Public marking directory | |
| MM3Z33V | — | SOD-323 | Public marking directory | |
| MRF9331 | — | SOT-143 | Public marking directory | |
| R1163D281E | — | — | Public marking directory | |
| R1223N152B | — | SOT-23-5 | Public marking directory | |
| SML4746 | — | DO-214 | Public marking directory | |
| U1Z18 | — | SOD-6 | Public marking directory | |
| U1ZB18 | — | I-FLAT | Public marking directory | |
| UTC8118 | — | SOT-89 | Public marking directory | |
| XC6213B182NR | — | SSOT-24 | Public marking directory | |
| XC6217C092NR | — | SSOT-24 | Public marking directory | |
| XC6221C461NR | — | SSOT-24 | Public marking directory | |
| Z02W18V | — | SOT-23 | Public marking directory | |
| ZD33V0 | — | SOD-322 | 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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