SMD marking code “LB” — 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 | |
|---|---|---|---|---|
| 2SA1734 | TOS | SOT-89 | Public marking directory | |
| BU4942F | ROHM* | SOP-4 | Public marking directory | |
| BU4942FWE | ROHM* | VSOF-5 | Public marking directory | |
| BU4942G | ROHM* | SSOP-5 | Public marking directory | |
| HD74LV1G125ACME | HIT | — | Public marking directory | |
| R1114Q311A | RICOH* | SOT-143R | Public marking directory | |
| RN1442B | TOS | SOT-346 | Public marking directory | |
| S525T | VISHAY-TELEFUNKEN | SOT-23 | Public marking directory | |
| 2SC2462-B | — | SOT-23 | Public marking directory | |
| 2SC5850-B | — | SOT-23 | Public marking directory | |
| ELM7631HDB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| HD2F3P | — | SOT-89 | Public marking directory | |
| HD74LV1G125AVSE | — | VSON–5 | Public marking directory | |
| KDZ5.1B | — | — | Public marking directory | |
| KTD1003-B | — | SOT-89 | Public marking directory | |
| PT7M6229NLC4 | — | SC-70-4 | Public marking directory | |
| PT7M6229NLC4E | — | SC-70-4 | Public marking directory | |
| R1211D104A | — | — | Public marking directory | |
| RP130Q131D | — | SC-82AB | Public marking directory | |
| RT9166A-14CXL | — | SOT-89 | Public marking directory | |
| RT9168-26CBR | — | SOT-23-5 | Public marking directory | |
| Si1305DL | — | SOT-323 | Public marking directory | |
| XC6120C41N | — | SSOT-24 | Public marking directory | |
| XC6127N18JNR | — | SSOT-24 | Public marking directory | |
| XC6223F211NR-G | — | 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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