SMD marking code “FB” — 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 | |
|---|---|---|---|---|
| 2SC4258-B | TOS* | SC-70 | Public marking directory | |
| 2SC5016 | NEC* | SOT-23 | Public marking directory | |
| 2SC5376-B | TOS* | SOT-416 | Public marking directory | |
| 2SC5376F-B | TOS* | SOT-490 | Public marking directory | |
| 2SC5376FV-B | TOS* | SOT-723 | Public marking directory | |
| 2SC5384-B | TOS* | SC-75A | Public marking directory | |
| BFP17 | INFINEON | — | Public marking directory | |
| MAX6314US46D4-T | MAX* | SOT-143 | Public marking directory | |
| 2SC2619-B | — | SOT-23 | Public marking directory | |
| 2SC3053-B | — | SC-59 | Public marking directory | |
| 2SC5216 | — | SC-59 | Public marking directory | |
| 2SC5233-B | — | SOT-323 | Public marking directory | |
| 2SC5565 | — | SOT-89 | Public marking directory | |
| ELM7621LDB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| Gate1 | — | — | Public marking directory | |
| KRC152F | — | TFSM 19ta - 3k Kec | Public marking directory | |
| R1141Q211D | — | SOT-143R | Public marking directory | |
| RP130Q131B | — | SC-82AB | Public marking directory | |
| RT9808-46CV | — | SOT-23 16vdb VD6 3a Rct | Public marking directory | |
| SiP810CLEUADT | — | SOT-23 | Public marking directory | |
| XC6127C18ANR | — | SSOT-24 | Public marking directory | |
| XC6127N18FNR | — | SSOT-24 | Public marking directory | |
| XC6224A19BNR | — | 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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