SMD marking code “55” — candidate parts

18 candidates7 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
BAT15-055RINFINEONSOT173Public marking directory
BAT15-055SINFINEONSOT173Public marking directory
BAT17-05INFINEONSOT-23Public marking directory
R3111Q551BRICOH*SC-82ABPublic marking directory
RN5RF55AARICOH*SOT-23-5Public marking directory
RN5RZ55AARICOH*SOT-23-5Public marking directory
UDZS16BROHM—Public marking directory
CHDTC123JMPT—SOT-723 18ta - 3a ChmPublic marking directory
EDZ16B—SOD-523Public marking directory
ELM9855BB—SOT-23 16cg VR1 3d ElmPublic marking directory
FSD273TA-A—SOT-323Public marking directory
Gali-55—SOT-89Public marking directory
HMSZ5255B—SOD-323Public marking directory
TCMM5Z3V9—SOD-523Public marking directory
TDZ16B——Public marking directory
VDZS16B——Public marking directory
XC6221D431NR—SSOT-24Public marking directory
ZD5255BS2—SOD-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.

* Manufacturer derived from the part-number family (some directory entries carry no manufacturer) — treat it as a lead, not a datasheet fact.

Other marking codes starting with “5”

5B33 parts5A31 parts5D29 parts5C28 parts5125 parts5222 parts5H19 parts5618 parts5E18 parts5F18 parts5017 parts516 parts

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