SMD marking code “FO” — 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 | |
|---|---|---|---|---|
| 2SA1202-O | TOS | SOT-89 | Public marking directory | |
| 2SC2716-O | TOS | SOT-23 | Public marking directory | |
| 2SC5344U-O | TOS* | SOT-323 18ta - 3a Auk | Public marking directory | |
| MAX6314US33D4-T | MAX* | SOT-143 | Public marking directory | |
| KTA1662-O | — | SOT-89 | Public marking directory | |
| SiP810C27EUEDT | — | SOT-23 | Public marking directory | |
| Source1 | — | — | 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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