SMD marking code “HD” — 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 | |
|---|---|---|---|---|
| 2SC3122 | TOS | SC-59 | Public marking directory | |
| 2SC4249 | TOS | SC-70 | Public marking directory | |
| BU4812F | ROHM* | SOP-4 | Public marking directory | |
| BU4812FWE | ROHM* | VSOF-5 | Public marking directory | |
| BU4812G | ROHM* | SSOP-5 | Public marking directory | |
| DDZ9685 | DIODES | SOD-123 | Public marking directory | |
| DDZ9685S | DIODES | SOD-323 | Public marking directory | |
| DDZ9685S | DIODES | — | Public marking directory | |
| DDZ9686 | DIODES | — | Public marking directory | |
| DDZX9685 | DIODES* | SOT-23 | Public marking directory | |
| DDZX9685TS | DIODES | SOT-363 | Public marking directory | |
| DDZX9685W | DIODES* | SOT-323 | Public marking directory | |
| MAX6315US44D2-T | MAX* | SOT-143 | Public marking directory | |
| UNR32A6 | PANASONIC* | — | Public marking directory | |
| 3T072C | — | DO-214AA | Public marking directory | |
| 74HC1GU04 | — | SOT-353 | Public marking directory | |
| AP130-37R | — | SOT-23 | Public marking directory | |
| AP130-37YR | — | SOT-89 | Public marking directory | |
| ELM7643LDB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| P4SMAJ5.0 | — | DO-214AC | Public marking directory | |
| RP130Q331B | — | SC-82AB | Public marking directory | |
| XC6127C22BNR | — | SSOT-24 | Public marking directory | |
| XC6127N22GNR | — | SSOT-24 | Public marking directory | |
| XC6223F301NR-G | — | SSOT-24 | Public marking directory | |
| Z2SMB-47 | — | DO-214AA | 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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