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Marking SMD
BU
SMD Code
Package
Device Name
Manufacturer
Data
Datasheet
BU
SOT-25
BD4739G
ROHM
Voltage Detector
BU
SOD-123F
BZT52H-C27
NXP
Zener diode
BU*
VDFN-8 2x2
RT9012-GPPQW
Richtek
Linear Voltage Regulator
BU***
SOT-25
SY6288DAAC
Silergy
Power Switch
BU-***
SOT-353
RT9198-31PU5R
Richtek
Linear Voltage Regulator
BU=***
SOT-26
RT9011-CJGJ6
Richtek
Linear Voltage Regulator