SMD marking code “LD” — 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 | |
|---|---|---|---|---|
| 2SA1736 | MCC | SOT-89 | Public marking directory | |
| 2SA812-M4 | MCC | SOT-23 | Public marking directory | |
| 2SC4357-D | TOS* | SOT-89 | Public marking directory | |
| BF543 | INFINEON | SOT-23 | Public marking directory | |
| BU4944F | ROHM* | SOP-4 | Public marking directory | |
| BU4944FWE | ROHM* | VSOF-5 | Public marking directory | |
| BU4944G | ROHM* | SSOP-5 | Public marking directory | |
| P6SMBJ12 | LITTLE* | DO-214AA | Public marking directory | |
| R1114Q331A | RICOH* | SOT-143R | Public marking directory | |
| SM6T6V8C | ST | DO-214AA | Public marking directory | |
| 2SC2462-D | — | SOT-23 | Public marking directory | |
| 2SC5850-D | — | SOT-23 | Public marking directory | |
| AX6601-15R | — | SOT-23L 16cg VR1 3b Axl | Public marking directory | |
| ELM7633HDB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| HD2A4M | — | SOT-89 | Public marking directory | |
| P6SMB18 | — | DO-214AA | Public marking directory | |
| PT7M6230CHC4 | — | SC-70-4 | Public marking directory | |
| PT7M6230CHC4E | — | SC-70-4 | Public marking directory | |
| RF1 | — | — | Public marking directory | |
| RP130Q151D | — | SC-82AB | Public marking directory | |
| RT9168-28CBR | — | SOT-23-5 | Public marking directory | |
| TV06B120K | — | DO-214AA | Public marking directory | |
| XC6120C43N | — | SSOT-24 | Public marking directory | |
| XC6127N22JNR | — | SSOT-24 | Public marking directory | |
| XC6223F231NR-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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