SMD marking code “K4M” — candidate parts

8 candidates8 with manufacturer

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 numberManufacturerPackageMapping basis
DXT5551DIODESPublic marking directory
DZT5551DIODESPublic marking directory
MMBT5401FSCSOT-23Public marking directory
MMBT5551DIODESPublic marking directory
MMDT5451DIODESPublic marking directory
MMDT5551MCCSOT-363Public marking directory
MMST5551DIODESPublic marking directory
MMST5551MCCSOT-323Public 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.

Can't match your marking?

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