SMD marking code “3R” — candidate parts

18 candidates4 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
2SC4497-RTOSSC-59 16ta - 3a TosPublic marking directory
IMP161REUSIMP*SOT-143Public marking directory
MMBT5571ONSOT23Public marking directory
RQ5RW34CARICOH*SOT-143RPublic marking directory
2SD5580—SOT-323 16ta - 3a PanPublic marking directory
CH481KPT—SOT-343Public marking directory
MMBT5751—SOT-23Public marking directory
PDTA124EEF—SOT-490Public marking directory
R1210N331A—SOT-23-5Public marking directory
R3131N29BA3—SOT-23Public marking directory
R3133Q45EA—SOT-143Public marking directory
SRA2203E—SOT-523Public marking directory
SRA2203EF—SOT-523FPublic marking directory
SRA2203U—SOT-323Public marking directory
SRA2203UF—SOT-323FPublic marking directory
XC6127N39DNR—SSOT-24Public marking directory
XC6217D232NR—SSOT-24Public marking directory
XC6223A381NR-G—SSOT-24Public 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 “3”

3947 parts3337 parts3B34 parts3730 parts3A30 parts3E29 parts3028 parts3626 parts3D24 parts3223 parts3523 parts3823 parts

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