SMD marking code “F1” — 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 | |
|---|---|---|---|---|
| BFS18 | PHI | SOT23 | Public marking directory | |
| CMOZ2V4 | CSC CENTRAL SEMIC.CORP.* | SOD-523 | Public marking directory | |
| HSMP-3821 | HP | SOT23 | Public marking directory | |
| KST1009-F1 | FSC* | SOT-23 | Public marking directory | |
| MMBC1009F1 | MOT | SOT-23 | Public marking directory | |
| MMBZ5236B | FSC | SOT-23 | Public marking directory | |
| MMBZ5236BW | DIODES | SOT-323 | Public marking directory | |
| MMSZ5236B | MCC | SOD-123 | Public marking directory | |
| MMSZ5236BS | DIODES | SOD-323 | Public marking directory | |
| MMSZ5236BS | DIODES | — | Public marking directory | |
| MMSZ5237B | DIODES | — | Public marking directory | |
| MMXZ5237B | MCC | SOD-323 | Public marking directory | |
| R3111N512A | RICOH* | SOT-23 | Public marking directory | |
| R3113D211C | RICOH* | — | Public marking directory | |
| R3114Q081C | RICOH* | SC-82AB | Public marking directory | |
| R5421N162C | RICOH* | SOT-23-6 | Public marking directory | |
| TC1073-2.5VCH | MIC* | SOT-23-6 | Public marking directory | |
| TC54VC5102ECB | MIC* | SOT-23 | Public marking directory | |
| TC54VC5102MB | MIC* | SOT-89 | Public marking directory | |
| BZX585-C2V4 | — | SOD-523 | Public marking directory | |
| ELM7621HBB | — | SOT-23 16vdc VD7 3d Elm | Public marking directory | |
| ELM9751NAB | — | SOT-89 | Public marking directory | |
| FFM101-MH | — | SOD-123H | Public marking directory | |
| FRS1A | — | DO-214AC | Public marking directory | |
| Gate1 | — | — | Public marking directory | |
| KTC1009F1 | — | SOT-23 | Public marking directory | |
| MMSZ52336 | — | SOD-123 | Public marking directory | |
| R1111N211B | — | SOT-23-5 | Public marking directory | |
| R1140Q211D | — | SOT-143R | Public marking directory | |
| R1160D111B | — | — | Public marking directory | |
| R1180Q311C | — | SC-82AB | Public marking directory | |
| RN5VD51AA | — | SOT-23-5 | Public marking directory | |
| RT9808-19CV | — | SOT-23 16vdb VD6 3a Rct | Public marking directory | |
| XC61CC5102M | — | SOT-23 | Public marking directory | |
| XC61CC5102N | — | SOT-143R | Public marking directory | |
| XC61CC5102P | — | SOT-89 | Public marking directory | |
| XC6221B321N | — | SSOT-24 26vn VR4 5a Tor | Public marking directory | |
| XC6221B321NR | — | SSOT-24 | Public marking directory | |
| XC6224A09BNR | — | 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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