The ultimate SMD marking codes database

Due to the small size of most SMD components, manufacturers are not able to write the full part number on the case. They use instead a marking code typically composed of a combination of 2 or 3 letters or digits. When repairing an unknown electronic board, it becomes so difficult to know what is the exact type of a given component. This database allows to quickly find the part number of a SMD component when you have only the marking code.
Showing components with code 'B'
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Marking
Name
Manufacturer/Case
Function
B
BAT15-098
Siemens
SOD-123
Diode
Schottky, 4V, 110mA, Vf<0.32V, <0.35pF
B
EP05Q06
Nihon Inter Electronics
SOD-123
Diode
SBR, 60V, 500mA, Vf<0.62V(500mA)
B
BAS16-03W
Infineon Technologies
SOD-323
Diode
Sw, Fast, 80V, 200mA, 200mW, Vf<1.25V(150mA), <6ns
B
GBLC08I
Protek Devices
SOD-323
Transient voltage supressor
Vrwm=8V, 2A, 350W(1ms), 0.6pF
B
1SS388PT
Chenmko Enterprise
SOD-523
Diode
SBD, 40V, 100mA, Vf<0.6V(50mA)
B
CH520S-30PT
Chenmko Enterprise
SOD-523
Diode
SBD, 30V, 200mA, Vf<0.6V(200mA)
B
MMSZ5251BPT
Chenmko Enterprise
SOD-523
Zener diode
22V±5%, Izt=5.6mA, Zzt=29, 225mW
B
RB520S-30
Rohm
SOD-523
Diode
SBR, 30V, 200mA, Vf<0.6V(200mA)
B
TVS100W5V0D
Diodesemi Technology
SOD-923
Transient voltage supressor
Vrwm=5.0V, Vbr=6.2V, 8.7A, 100W(1ms)
B
MA2H736
Panasonic
SOD-106
Diode
SBR, HF, 40V, 1A, Vf<0.55V(1A), 50pF, 30ns
B
ELM7523CEB
ELM Technology
SC-70
Voltage detector IC
2.3V±2%, +Reset PPO
B
ELM7523NEB
ELM Technology
SC-70
Voltage detector IC
2.3V±2%, +Reset ODO
B
AX6903JA
AXElite Technology
SC-70-3L
Voltage detector IC
2.80V±1.5%, -Reset PPO
B
IRLML2803PbF
International Rectifier
SOT-23
MOSFET n-type
Sw, fast, 30V, 1.2A, 540mW, Rds<0.25(0.91A), 3.9/9ns
B
XMFP2-M3
Murata Manufacturing
SOT-89
FET n-type
GaAs, UHF, 6V, 700mA, 2.5W, Idss=400mA(3V), 6GHz
B
Si1013X
Siliconix
SC-89
MOSFET p-type
T-FET, Sw, 20V, 275mA, 250mW, <1.2(350mA), 5/35ns
B
3SK306
Panasonic
SC-82
MOSFET n-type
Dual gate, UHF-amp, 15V, +30mA, 150mW, Idss=0..10mA
B
ELM7523CCB
ELM Technology
SC-82AB
Voltage detector IC
2.3V±2%, +Reset PPO
B
ELM7523NCB
ELM Technology
SC-82AB
Voltage detector IC
2.3V±2%, +Reset ODO
B
3SK302
Panasonic
SOT-143
MOSFET n-type
Dual gate, UHF-amp, 15V, +30mA, 150mW, Idss=0..10mA
B
XMFS3-M1
Murata Manufacturing
SOT-143
FET n-type
GaAs, UHF, 5V, 60mA, 200mW, Idss=15mA(3V), 6GHz
B
TCR3DG33
Toshiba
WCSP4E
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE
B
TCR4DG105
Toshiba
WCSP4E
Linear voltage regulator IC
LDO, 1.05V±1%, 420mA, +CE
B
TCR3UG085A
Toshiba
WCSP4F
Linear voltage regulator IC
LDO, 0.85V±1%, 300mA, +CE, CL
B
TCR3UG085B
Toshiba
WCSP4F
Linear voltage regulator IC
LDO, 0.85V±1%, 300mA, +CE
B
ELM7523CCC
ELM Technology
SC-70-5
Voltage detector IC
2.3V±2%, +Reset PPO
B
ELM7523NCC
ELM Technology
SC-70-5
Voltage detector IC
2.3V±2%, +Reset ODO
B
FP6121-BWDG
Fitipower Integrated Technology
TDFN-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.3V/2.5V±2%, 150mA, +CE, Green pack.
B
FSS14M
Fagor Electronica
MicroSMA
Diode
SBR, 40V, 1A, Vf<0.55V(1A)
B
UNRL113
Panasonic
ML4
PNP transistor
Sw, 50V, 100mA, 150mW, 80MHz, R1/R2=47k/47k
B
UNRL213
Panasonic
ML4
NPN transistor
Sw, 50V, 100mA, 150mW, 150MHz, R1/R2=47k/47k
B
BB555-02V
Infineon Technologies
SC-79
Capacitance diode
UHF TV-tuning, 30V, 20mA, 2.1..18.7pF(28..1V)
B
CMBT3904E
Central Semiconductor
SOT-923
NPN transistor
GP, 60V, 200mA, 100mW, B=100..100, 300MHz
B
NT353
AUK Semiconductor
SOT-923
NPN transistor
Sw, 20V, 50mA, 50mW, 200MHz, R1/R2=10k/10k
B
EC886818UF
E-CMOS
UDFN-4
Linear voltage regulator IC
LDO, 1.8V±2%, 300mA, +CE
b
MMSZ5229BPT
Chenmko Enterprise
SOD-523
Zener diode
4.3V±5%, Izt=20mA, Zzt=22, 225mW
b
AX6901BA
AXElite Technology
SC-70-3L
Voltage detector IC
4.38V±1.5%, -Reset PPO
b
CH3904TPT
Chenmko Enterprise
SOT-416
NPN transistor
AF, Sw, 40V, 200mA, B=100..300, 300MHz
b
CH3904T1PT
Chenmko Enterprise
FBPT-523
NPN transistor
AF, Sw, 40V, 200mA, B=100..300, 300MHz

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