SMD marking code “BU” — candidate parts

29 candidates6 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 source
BAT54FSCSOD-123PDF · smd-codes.pdf p.74
BCX71GRFERRANTISOT-23PDF · smd-codes.pdf p.246
BCX71RGSIEMENSSOT-23PDF · smd-codes.pdf p.246
BZX399-C27PHISOD-323PDF · smd-codes.pdf p.74
BZX399-C27PHISC-76/SOD323PDF · 飞利浦SMD-PHILIPS.pdf p.18
BZX399C27PHISOD323PDF · SMD_Catalog222.pdf p.36
2SD1005-USOT-89PDF · 2011SMD-codes.pdf p.754
Anode1PDF · 2011SMD-codes.pdf p.2462
BD4739GPDF · smd-codes.pdf p.866
BZT52H-C27SOD123FPDF · smd-codes.pdf p.74
DA228KSOT-346PDF · smd-codes.pdf p.246
DA228USOT-323PDF · smd-codes.pdf p.246
P4SMA36DO-214ACPDF · smd-codes.pdf p.74
P6SMBJ20CDO-214AAPDF · smd-codes.pdf p.74
R1112N381ASOT-23-5PDF · smd-codes.pdf p.866
R3112Q181CSC-82ABPDF · 2011SMD-codes.pdf p.842
R5421N163FSOT-23-6PDF · smd-codes.pdf p.986
RT9169-38CVSOT-23PDF · smd-codes.pdf p.246
RT9169-39CXSOT-89PDF · 2011SMD-codes.pdf p.754
TV04A200KDO-214ACPDF · smd-codes.pdf p.75
TV06B200KBDO-214AAPDF · smd-codes.pdf p.75
UDZ33BSOD-323PDF · smd-codes.pdf p.75
XC6109C15ANSSOT-24PDF · 2011SMD-codes.pdf p.842
XC61119C15ANR-GSSOT-24 26gh VD3 5c TorPDF · 老外牛B SMD-2010.pdf p.648
XC6119C15ANRSSOT-24PDF · 2011SMD-codes.pdf p.842
XC6127C45GNRSSOT-24PDF · 2011SMD-codes.pdf p.842
XC6127N46BNRSSOT-24PDF · 2011SMD-codes.pdf p.842
XC6221B261NSSOT-24 26vn VR4 5a TorPDF · 老外牛B SMD-2010.pdf p.648
XC6221B261NRSSOT-24PDF · 2011SMD-codes.pdf p.842
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.

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