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 codes starting with 'W1'

Marking
Name
Manufacturer/Case
Function
W1
AP1701GTW
Anachip
TSOT-23-3L
Voltage detector IC
2.25V±1.5%, -Reset PPO
W1
AP1701GW
Anachip
SOT-23-3L
Voltage detector IC
2.25V±1.5%, -Reset PPO
W1
AP8822C-31GA
Anwell Semiconductor
SOT-23
Voltage detector IC
3.1V±2%, -Reset PPO, 200ms, Halogen-fre
W1
AP8822C-31GI
Anwell Semiconductor
SC-82
Voltage detector IC
3.1V±2%, -Reset PPO, 200ms, Halogen-fre
W1
AP8822C-31GS
Anwell Semiconductor
SC-82S
Voltage detector IC
3.1V±2%, -Reset PPO, 200ms, Halogen-fre
W1
AP8822C-31GT
Anwell Semiconductor
SC-70
Voltage detector IC
3.1V±2%, -Reset PPO, 200ms, Halogen-fre
W1
AP8822C-31PA
Anwell Semiconductor
SOT-23
Voltage detector IC
3.1V±2%, -Reset PPO, 200ms
W1
AP8822C-31PI
Anwell Semiconductor
SC-82
Voltage detector IC
3.1V±2%, -Reset PPO, 200ms
W1
AP8822C-31PS
Anwell Semiconductor
SC-82S
Voltage detector IC
3.1V±2%, -Reset PPO, 200ms
W1
AP8822C-31PT
Anwell Semiconductor
SC-70
Voltage detector IC
3.1V±2%, -Reset PPO, 200ms
W1
BD46235G
Rohm
SSOP-5
Voltage detector IC
2.3V±1%, -MR, -Reset PPO, 500ms
W1
BZT52B2V4
PanJIT Semiconductor
SOD-123
Zener diode
2.4V±2%, Izt=5mA, Zzt=100, 410mW
W1
BZT52C2V4-F
TAITRON Components
SOD-123F
Zener diode
2.28..2.56V, Izt=5mA, 410mW
W1
BZT52C2V4-V
Vishay Semiconductor
SOD-123
Zener diode
2.4V±5%, Izt=5mA, Zzt=100, 500mW
W1
BZT52C2V4S
PanJIT Semiconductor
SOD-323
Zener diode
2.4V±5%, Izt=5mA, Zzt=100, 200mW
W1
BZT52C2V4WS
TAITRON Components
SOD-323F
Zener diode
2.28..2.52V, Izt=5.0mA, 200mW
W1
BZT52C2V4WT
TAITRON Components
SOD-523
Zener diode
2.28..2.52V, Izt=5mA, Zzt=100, 200mW
W1
BZT52C2V4WU
TAITRON Components
SOD-723
Zener diode
2.28..2.52V, Izt=5mA, Zzt=100, 200mW
W1
BZT52C2V7
Diodes
SOD-123
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 500mW
W1
BZT52C2V7
Diodes
SOD-123
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 500mW
W1
BZT52C2V7LP
Diodes
DFN1006-2
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 250mW
W1
BZT52C2V7LP
Diodes
DFN1006-2
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 250mW
W1
BZT52C2V7S
Diodes
SOD-323
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 200mW
W1
BZT52C2V7S
Diodes
SOD-323
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 200mW
W1
BZT52C2V7T
Diodes
SOD-523
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 150mW
W1
BZX384C2V4-V
Vishay Semiconductor
SOD-323
Zener diode
2.4V±5%, Izt=5mA, Zzt=70, 200mW
W1
BZX584C2V4
PanJIT Semiconductor
SOD-523
Zener diode
2.2..2.6V, Izt=5mA, Zzt=100, 200mW
W1
BZX784C2V4
PanJIT Semiconductor
SOD-723
Zener diode
2.28 2.52V, Zzt=100, Izt=5mA, 200mW
W1
BZX84B2V4
PanJIT Semiconductor
SOT-23
Zener diode
2.35..2.45V, Zzt=100, Izt=5mA, 410mW
W1
BZX84C2V4
Micro Commercial Components
SOT-23
Zener diode
2.28..2.52V, Zzt=100, Izt=5mA, 350mW
W1
BZX84C2V4TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 2.35..2.45V, Zzt=100, Izt=5mA, 200mW
W1
BZX84C2V4W
Won-Top Electronics
SOT-323
Zener diode
2.2..2.6V, Zzt=100, Izt=5mA, 200mW
W1
CZRW55C2V7-G
Comchip Technology
SOD-123
Zener diode
2.7..2.90V, Zzt=100, Izt=5mA, 500mW
W1
ELM7631LBB
ELM Technology
SOT-23
Voltage detector IC
3.1V±2%, -Reset PPO, 500ms
W1
ELM9731CAB
ELM Technology
SOT-89
Voltage detector IC
3.1V±2.5%, +Reset PPO
W1
ELM9731CBB
ELM Technology
SOT-23
Voltage detector IC
3.1V±2.5%, +Reset PPO
W1
FES3A
Fagor Electronica
DO-214AB
Diode
U-fast Recovery, 50V, 3A, <50ns
W1
FMW1
Rohm
SOT-23-5
NPN transistor
Dual, GP, 60V, 150mA, 180MHz
W1
HD74LV1GW98ACM
Renessas
CMPAK-6
Capacitance diode
Configurable multiple-function gate
W1
LBZT52C2V7T1G
Leshan Radio Company
SOD-123
Zener diode
2.5..2.9V, Izt=5mA, 500mW
W1
MC74VHC1GT125DF
ON Semiconductor
SOT-353
Capacitance diode
Bus buffer gate with 3-state output
W1
MC74VHC1GT125DT
ON Semiconductor
SOT-23-5
Capacitance diode
Bus buffer gate with 3-state output
W1
MEZ02-2.4-D3
Matsuki Electronic Company
SOD-323
Zener diode
2.28..2.52V, Izt=5mA, Zzt=85, 200mW
W1
MM3Z2V7
Secos
SOD-323
Zener diode
2.5..2.9V, Izt=5mA, Zzt=100, 200mW
W1
R1210N311D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 3.1V, 180kHz
W1
R3111Q311C
Ricoh
SC-82AB
Voltage detector IC
3.1V±2%, -Reset ODO
W1
R5325N001B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2V/2V±1%, 150mA, +CE, CL
W1
RP103Q161B
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, 1.6V±1%, 150mA, +CE
W1
TZTC2V4WS
TAITRON Components
SOT-323
Zener diode
2.28..2.52V, Izt=5mA, Zzt=100, 200mW
W10
CMPZDA27V
Central Semiconductor
SOT-23
Zener diode
Dual, 27V±2.5%, If=10mA, 350mW
W10
FMW10
Rohm
SC-74
NPN transistor
Dual, HF, 30V, 50mA, 300mW, B=27..270, 1.5GHz
W10
UMW10N
Rohm
SC-88
NPN transistor
Dual, HF, 30V, 50mA, 300mW, B=27..270, 1.5GHz
W100
R1190H100B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.0V±1.5%, 1A, +CE
W101
R1190H101B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.1V±1.5%, 1A, +CE
W102
R1190H102B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.2V±1.5%, 1A, +CE
W103
R1190H103B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.3V±1.5%, 1A, +CE
W104
R1190H104B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.4V±1.5%, 1A, +CE
W105
R1190H105B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.5V±1.5%, 1A, +CE
W106
R1190H106B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.6V±1.5%, 1A, +CE
W107
R1190H107B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.7V±1.5%, 1A, +CE
W108
R1190H108B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.8V±1.5%, 1A, +CE
W109
R1190H109B
Ricoh
SOT-89-5
Linear voltage regulator IC
10.9V±1.5%, 1A, +CE
W11
CMPZDA30V
Central Semiconductor
SOT-23
Zener diode
Dual, 30V±2.5%, If=10mA, 350mW
W11
FMW11
Rohm
SOT-23-5
NPN transistor
Dual, HF, 30V, 50mA, >600MHz
W11
PDTA114TT

SOT-23
PNP transistor
Sw, 50V, 100mA, 250mW, R1=10k
W11
PDTA115TU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1=100k
W11
SMTPB68
SGS-Thomson Microelectronics
DO-214AB
Transient voltage supressor
Vrwm=68V, 100A, 5W(1ms), Bidir.
W110
R1190H110B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.0V±1.5%, 1A, +CE
W111
R1190H111B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.1V±1.5%, 1A, +CE
W112
R1190H112B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.2V±1.5%, 1A, +CE
W113
R1190H113B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.3V±1.5%, 1A, +CE
W114
R1190H114B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.4V±1.5%, 1A, +CE
W115
R1190H115B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.5V±1.5%, 1A, +CE
W116
R1190H116B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.6V±1.5%, 1A, +CE
W117
R1190H117B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.7V±1.5%, 1A, +CE
W118
R1190H118B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.8V±1.5%, 1A, +CE
W119
R1190H119B
Ricoh
SOT-89-5
Linear voltage regulator IC
11.9V±1.5%, 1A, +CE
W12
CMPZDA33V
Central Semiconductor
SOT-23
Zener diode
Dual, 33V±2.5%, If=10mA, 350mW
W12
PDTA144VU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=47k/10k
W12
PDTC114TT

SOT-23
NPN transistor
Sw, 50V, 100mA, 250mW, R1=10k
W120
R1190H120B
Ricoh
SOT-89-5
Linear voltage regulator IC
12.0V±1.5%, 1A, +CE
W13
CMPZDA36V
Central Semiconductor
SOT-23
Zener diode
Dual, 36V±2.5%, If=10mA, 350mW
W13
FMW13
Rohm
SOT-23-5
NPN transistor
Dual, HF, 30V, 50mA, >900MHz
W13
PDTA123YU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=2.2k/10k
W13
S913TRW
Vishay Semiconductor
SOT-343R
Monolithic microwave IC
UHF, 12V, 30mA, 200mW, Idss=50..500µA
W14
CMPZDA39V
Central Semiconductor
SOT-23
Zener diode
Dual, 39V±2.5%, If=10mA, 350mW
W14
PDTA113EU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=1k/1k
W15
CMPZDA43V
Central Semiconductor
SOT-23
Zener diode
Dual, 43V±2.5%, If=10mA, 350mW
W15
PDTA113ET

SOT-23
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=1k/1k
W15
PDTC115EU

SOT-323
NPN transistor
Sw, 50V, 100mA, 200mW, R1/R2=100k/100k
W15
R1163N151D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.5V±1.5%, 150mA, +CE, CL, AE(Mode)
W16
CMPZDA47V
Central Semiconductor
SOT-23
Zener diode
Dual, 47V±2.5%, If=10mA, 350mW
W16
PDTA113ZU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=1k/10k
W16
PDTC114ET

SOT-23
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/10k
W16
R1163N161D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.6V±1.5%, 150mA, +CE, CL, AE(Mode)
W17
PDTC115TU

SOT-323
NPN transistor
Sw, 50V, 100mA, 200mW, R1=100k
W17
PDTC124ET

SOT-23
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k
W17
R1163N171D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.7V±1.5%, 150mA, +CE, CL, AE(Mode)
W17
SMTPB100
SGS-Thomson Microelectronics
DO-214AB
Transient voltage supressor
Vrwm=100V, 100A, 5W(1ms), Bidir.
W18
BFP181TRW
Vishay Semiconductor
SOT-343R
NPN transistor
UHF, 20V, 20mA, 175mW, B=50..200, 8GHz
W18
BFP181TW
Silicon General
SOT-343
NPN transistor
UHF, 20V, 20mA, 175mW, B=50..200, 8GHz
W18
PDTC143ZT

SOT-23
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/47k
W18
PDTC144VU

SOT-323
NPN transistor
Sw, 50V, 100mA, 200mW, R1/R2=47k/10k
W18
R1163N181D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.8V±1.5%, 150mA, +CE, CL, AE(Mode)
W19
BFP193TRW
Silicon General
SOT-343
NPN transistor
UHF, 20V, 80mA, 580mW, B=50..200, 8GHz
W19
PDTA143ZT

SOT-23
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/47k
W19
PDTC123YU

SOT-323
NPN transistor
Sw, 50V, 100mA, 200mW, R1/R2=2.2k/10k
W19
R1163N191D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.9V±1.5%, 150mA, +CE, CL, AE(Mode)
W1A
PMBT3904

SOT-23
NPN transistor
Sw, 60V, 100mA, 250mW, B=100..300, >300MHz
W1A
PMST3904

SOT-323
NPN transistor
GP, 60V, 200mA, 200mW, B=60..300, >300MHz
W1A
R3119N046E
Ricoh
SOT-23-5
Voltage detector IC
4.6V±1.5%, ±Reset ODO, Sense
W1B
PMBT2222

SOT-23
NPN transistor
Sw, 60V, 600mA, 330mW, B=120..360, >300MHz
W1B
PMST2222

SOT-323
NPN transistor
Sw, 60V, 600mA, 200mW, B=120..300, >300MHz
W1B
R3119N047E
Ricoh
SOT-23-5
Voltage detector IC
4.7V±1.5%, ±Reset ODO, Sense
W1C
R3119N048E
Ricoh
SOT-23-5
Voltage detector IC
4.8V±1.5%, ±Reset ODO, Sense
W1D
PMBTA42

SOT-23
NPN transistor
Vid, 300/300V, 100mA, 250mW, B>25, >50MHz
W1D
PMSTA42

SOT-323
NPN transistor
Vid, 300/300V, 100mA, 200mW, B>25, >50MHz
W1D
R3119N049E
Ricoh
SOT-23-5
Voltage detector IC
4.9V±1.5%, ±Reset ODO, Sense
W1E
PMBTA43

SOT-23
NPN transistor
Vid, 200/200V, 100mA, 250mW, B>25, >50MHz
W1E
PMSTA43

SOT-323
NPN transistor
Vid, 200/200V, 100mA, 200mW, B>25, >50MHz
W1E
R3119N050E
Ricoh
SOT-23-5
Voltage detector IC
5.0V±1.5%, ±Reset ODO, Sense
W1F
PMBT5550

SOT-23
NPN transistor
HV, 160V, 300mA, 250mW, B=60..250, 100..300MHz
W1F
PMST5550

SOT-323
NPN transistor
HV, 160V, 300mA, 200mW, B=60..250, 100..300MHz
W1F
R3119N051E
Ricoh
SOT-23-5
Voltage detector IC
5.1V±1.5%, ±Reset ODO, Sense
W1G
PMBTA06

SOT-23
NPN transistor
GP, 80V, 500mA, 250mW, B>100, >100MHz
W1G
PMSTA06

SOT-323
NPN transistor
GP, 80V, 500mA, 200mW, B>50, >100MHz
W1G
R3119N052E
Ricoh
SOT-23-5
Voltage detector IC
5.2V±1.5%, ±Reset ODO, Sense
W1H
PMBTA05

SOT-23
NPN transistor
GP, 60V, 500mA, 250mW, B>100, >100MHz
W1H
PMSTA05

SOT-323
NPN transistor
GP, 60V, 500mA, 200mW, B>50, >100MHz
W1H
R3119N053E
Ricoh
SOT-23-5
Voltage detector IC
5.3V±1.5%, ±Reset ODO, Sense
W1J
PMBT2369

SOT-23
NPN transistor
Sw, 40V, 200mA, 330mW, B=40..120, >500MHz
W1J
PMST2369

SOT-323
NPN transistor
Sw, 40V, 200mA, 200mW, B=40..120, >500MHz
W1J
R3119N054E
Ricoh
SOT-23-5
Voltage detector IC
5.4V±1.5%, ±Reset ODO, Sense
W1K
PMBT6428

SOT-23
NPN transistor
GP, AF, 60V, 100mA, 250mW, B>250..650, 100..700MHz
W1K
PMST6428

SOT-323
NPN transistor
GP, Hi-beta, 60V, 100mA, 200mW, B=250..650, 100..700MHz
W1K
R3119N055E
Ricoh
SOT-23-5
Voltage detector IC
5.5V±1.5%, ±Reset ODO, Sense
W1L
PMBT6429

SOT-23
NPN transistor
GP, AF, 55V, 100mA, 250mW, B>500..1250, 100..700MHz
W1L
PMST6429

SOT-323
NPN transistor
GP, Hi-beta, 55V, 100mA, 200mW, B=250..650, 100..700MHz
W1L
R3119N056E
Ricoh
SOT-23-5
Voltage detector IC
5.6V±1.5%, ±Reset ODO, Sense
W1M
PMBTA13

SOT-23
NPN darlington
GP, 30V, 500mA, 250mW, B>5000, >125MHz
W1M
R3119N057E
Ricoh
SOT-23-5
Voltage detector IC
5.7V±1.5%, ±Reset ODO, Sense
W1N
PMBTA14

SOT-23
NPN darlington
GP, 30V, 500mA, 250mW, B>10000, >125MHz
W1N
R3119N058E
Ricoh
SOT-23-5
Voltage detector IC
5.8V±1.5%, ±Reset ODO, Sense
W1p
BFT92

SOT-23
PNP transistor
UHF-A, 20V, 25mA, 300mW, B~50, 5GHz
W1p
BFT92W

SOT-323
PNP transistor
UHF-A, 20V, 25mA, 300mW, B~50, 5GHz
W1P
PMBT2222A

SOT-23
NPN transistor
Sw, 75V, 600mA, 330mW, B=120..360, >300MHz
W1P
PMST2222A

SOT-323
NPN transistor
Sw, 75V, 600mA, 200mW, B=120..300, >300MHz
W1P
R3119N059E
Ricoh
SOT-23-5
Voltage detector IC
5.9V±1.5%, ±Reset ODO, Sense
W1Q
PMBT5088

SOT-23
NPN transistor
GP, AF, 30V, 200mA, 325mW, B>500, 160MHz
W1Q
PMST5088

SOT-323
NPN transistor
GP, 35V, 100mA, 200mW, B=300..900, >100MHz
W1R
PMST5089

SOT-323
NPN transistor
GP, 30V, 100mA, 200mW, B=400..1200, >100MHz
W1R
R3119N060E
Ricoh
SOT-23-5
Voltage detector IC
6.0V±1.5%, ±Reset ODO, Sense
W1s
BCR10PN
Infineon Technologies
SOT-363
NPN+PNP transistors
Dual, Sw, 50V, 100mA, 250mW, R1/R2=10k/10k
W1s
BFT92W
Siemens
SOT-323
PNP transistor
UHF-A, 20V, 25mA, 5GHz
W1S
PDTA123TU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1=2.2k
W1S
R3119N061E
Ricoh
SOT-23-5
Voltage detector IC
6.1V±1.5%, ±Reset ODO, Sense
W1t
BFT92

SOT-23
PNP transistor
UHF-A, 20V, 25mA, 300mW, B~50, 5GHz
W1t
BFT92W

SOT-323
PNP transistor
UHF-A, 20V, 25mA, 300mW, B~50, 5GHz
W1T
PDTC123TU

SOT-323
NPN transistor
Sw, 50V, 100mA, 200mW, R1=2.2k
W1T
PDTD123TT

SOT-23
NPN transistor
Sw, 50V, 500mA, 250mW, R1=2.2k
W1T
R3119N062E
Ricoh
SOT-23-5
Voltage detector IC
6.2V±1.5%, ±Reset ODO, Sense
W1U
PDTB123TT

SOT-23
PNP transistor
Sw, 50V, 500mA, 250mW, R1=2.2k
W1U
R3119N063E
Ricoh
SOT-23-5
Voltage detector IC
6.3V±1.5%, ±Reset ODO, Sense
W1V
R3119N064E
Ricoh
SOT-23-5
Voltage detector IC
6.4V±1.5%, ±Reset ODO, Sense
W1W
BFT92

SOT-23
PNP transistor
UHF-A, 20V, 25mA, 300mW, B~50, 5GHz
W1W
BFT92W

SOT-323
PNP transistor
UHF-A, 20V, 25mA, 300mW, B~50, 5GHz
W1W
R3119N065E
Ricoh
SOT-23-5
Voltage detector IC
6.5V±1.5%, ±Reset ODO, Sense
W1X
R3119N066E
Ricoh
SOT-23-5
Voltage detector IC
6.6V±1.5%, ±Reset ODO, Sense
W1Y
R3119N067E
Ricoh
SOT-23-5
Voltage detector IC
6.7V±1.5%, ±Reset ODO, Sense
W1Z
R3119N068E
Ricoh
SOT-23-5
Voltage detector IC
6.8V±1.5%, ±Reset ODO, Sense