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 'W2'

Marking
Name
Manufacturer/Case
Function
W2
1SS355
Semtech Electronics
SOD-323
Diode
Sw-Fast, 80V, 100mA, Vf<1.2V(100mA), 4ns
W2
AP1702GW
Diodes
SC-59
Voltage detector IC
2.25V±1.5%, +Reset PPO
W2
AP8822C-32GA
Anwell Semiconductor
SOT-23
Voltage detector IC
3.2V±2%, -Reset PPO, 200ms Rt delay, Halogen-free
W2
AP8822C-32GI
Anwell Semiconductor
SC-82
Voltage detector IC
3.2V±2%, -Reset PPO, 200ms Rt delay, Halogen-free
W2
AP8822C-32GS
Anwell Semiconductor
SC-82S
Voltage detector IC
3.2V±2%, -Reset PPO, 200ms Rt delay, Halogen-free
W2
AP8822C-32GT
Anwell Semiconductor
SC-70
Voltage detector IC
3.2V±2%, -Reset PPO, 200ms Rt delay, Halogen-free
W2
AP8822C-32PA
Anwell Semiconductor
SOT-23
Voltage detector IC
3.2V±2%, -Reset PPO, 200ms Rt delay
W2
AP8822C-32PI
Anwell Semiconductor
SC-82
Voltage detector IC
3.2V±2%, -Reset PPO, 200ms Rt delay
W2
AP8822C-32PS
Anwell Semiconductor
SC-82S
Voltage detector IC
3.2V±2%, -Reset PPO, 200ms Rt delay
W2
AP8822C-32PT
Anwell Semiconductor
SC-70
Voltage detector IC
3.2V±2%, -Reset PPO, 200ms Rt delay
W2
BCR189L3
Infineon Technologies
TSLP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1=22k, 150MHz
W2
BD46481G
Rohm
SSOP-5
Voltage detector IC
4.8V±1%, -MR, -Reset PPO, 100ms
W2
BZT52-C2V7S
PanJIT Semiconductor
SOD-323
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 200mW
W2
BZT52B2V7
PanJIT Semiconductor
SOD-123
Zener diode
2.7V±2%, Izt=5mA, Zzt=83, 410mW
W2
BZT52C2V7
Won-Top Electronics
SOD-123
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 410mW
W2
BZT52C2V7-F
TAITRON Components
SOD-123F
Zener diode
2.5..2.9V, Izt=5mA, 410mW
W2
BZT52C2V7-V
Vishay Semiconductor
SOD-123
Zener diode
2.7V±5%, Izt=5mA, Zzt=100, 500mW
W2
BZT52C2V7WS
TAITRON Components
SOD-323F
Zener diode
2.57..2.84V, Izt=5.0mA, 200mW
W2
BZT52C2V7WT
TAITRON Components
SOD-523
Zener diode
2.57..2.84V, Izt=5mA, Zzt=100, 200mW
W2
BZT52C2V7WU
TAITRON Components
SOD-723
Zener diode
2.57..2.84V, Izt=5mA, Zzt=100, 200mW
W2
BZT52C3V0
Diodes
SOD-123
Zener diode
3.0V±5%, Izt=5mA, Zzt=95, 500mW
W2
BZT52C3V0
Diodes
SOD-123
Zener diode
3.0V±5%, Izt=5mA, Zzt=95, 500mW
W2
BZT52C3V0-G
Taiwan Semiconductor Company
SOD-123
Zener diode
2.85..3.15V, Izt=5mA, Zzt=100, 350mW
W2
BZT52C3V0S
Diodes
SOD-323
Zener diode
3.0V±5%, Izt=5mA, Zzt=95, 200mW
W2
BZT52C3V0S
Diodes
SOD-323
Zener diode
3.0V±5%, Izt=5mA, Zzt=95, 200mW
W2
BZT52C3V0T
Diodes
SOD-523
Zener diode
3.0V±5%, Izt=5mA, Zzt=95, 150mW
W2
BZV49-C0V8
Zetex
SOT-89
Zener diode
0.8V±5%, Izt=5mA, 1W
W2
BZX384C2V7-V
Vishay Semiconductor
SOD-323
Zener diode
2.7V±5%, Izt=5mA, Zzt=75, 200mW
W2
BZX584C2V7
PanJIT Semiconductor
SOD-523
Zener diode
2.5..2.9V, Izt=5mA, Zzt=100, 200mW
W2
BZX784B12
Good-Ark Electronics
SOD-723
Zener diode
11.76..12.24V, Izt=5mA, Zzt=25, 100mW
W2
BZX784C2V7
PanJIT Semiconductor
SOD-723
Zener diode
2.57..2.84V, Zzt=100, Izt=5mA, 200mW
W2
BZX84B2V7
PanJIT Semiconductor
SOT-23
Zener diode
2.64..2.75V, Zzt=100, Izt=5mA, 410mW
W2
BZX84C2V7
Micro Commercial Components
SOT-23
Zener diode
2.5..2.9V, Zzt=100, Izt=5mA, 350mW
W2
BZX84C2V7TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 2.64..2.75V, Zzt=100, Izt=5mA, 200mW
W2
BZX84C2V7W
Won-Top Electronics
SOT-323
Zener diode
2.5..2.9V, Zzt=100, Izt=5mA, 200mW
W2
CZRW55C3V0-G
Comchip Technology
SOD-123
Zener diode
3.0..3.20V, Zzt=95, Izt=5mA, 500mW
W2
EC95810C32B1N
E-CMOS
SOT-23-3L
Voltage detector IC
3.2V±2%, -Reset PPO, Td=200ms
W2
EC95810C32C1N
E-CMOS
SC-70-3L
Voltage detector IC
3.2V±2%, -Reset PPO, Td=200ms
W2
EC95810C32C7I
E-CMOS
SC-82-4L
Voltage detector IC
3.2V±2%, -Reset PPO, Td=200ms
W2
EC95810C32C7S
E-CMOS
SC-82-4L
Voltage detector IC
3.2V±2%, -Reset PPO, Td=200ms
W2
ELM7632LBB
ELM Technology
SOT-23
Voltage detector IC
3.2V±2%, -Reset PPO, 500ms
W2
ELM9732CAB
ELM Technology
SOT-89
Voltage detector IC
3.2V±2.5%, +Reset PPO
W2
ELM9732CBB
ELM Technology
SOT-23
Voltage detector IC
3.2V±2.5%, +Reset PPO
W2
FES3B
Fagor Electronica
DO-214AB
Diode
U-fast recov. rectif, 100V, 3A, <50ns
W2
FMW2
Rohm
SOT-23-5
NPN transistor
Dual, GP, 60V, 150mA, 180MHz
W2
HD74LV1GW97ACM
Renessas
CMPAK-6
CMOS logic IC
Configurable multiple-function gate
W2
LBZT52C3V0T1G
Leshan Radio Company
SOD-123
Zener diode
2.8..3.2V, Izt=5mA, 500mW
W2
MC74VHC1G126DF
ON Semiconductor
SOT-353
CMOS logic IC
Bus buffer gate with 3-state output
W2
MC74VHC1G126DT
ON Semiconductor
SOT-23-5
CMOS logic IC
Bus buffer gate with 3-state output
W2
MEZ02-2.7-D3
Matsuki Electronic Company
SOD-323
Zener diode
2.57..2.84V, Izt=5mA, Zzt=83, 200mW
W2
MM3Z3V0
Secos
SOD-323
Zener diode
2.8..3.2V, Izt=5mA, Zzt=95, 200mW
W2
PRF957
Philips
SOT-323
NPN transistor
UHF, LN, 20V, 100mA, 270mW, B=50..200, 8.5GHz
W2
R1210N321D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 3.2V, 180kHz
W2
R3111Q321C
Ricoh
SC-82AB
Voltage detector IC
3.2V±2%, -Reset PPO
W2
R5325N002B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/2.8V±1%, 150mA, +CE, CL
W2
RP103Q141B
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, 1.4V±1%, 150mA,
W2
TSDF1220RW
Vishay Semiconductor
SOT-343R
NPN transistor
UHF-VHF, LN, 9V, 40mA, 200mW, B=50..150, 12GHz
W2
TZTC2V7WS
TAITRON Components
SOT-323
Zener diode
2.57..2.84V, Izt=5mA, Zzt=100, 200mW
W2-
RT9818C-30PB
Richtek Technology
SOT-23-5
Voltage detector IC
3.0V±1.5%, -Reset ODO, Td=220ms
W20
KIC73B20M2
Korea Electronics
TSM
Voltage detector IC
2.0V±1%, -Reset PPO, Td=50ms
W20
KIC73B20T2
Korea Electronics
SOT-23
Voltage detector IC
2.0V±1%, -Reset PPO, Td=50ms
W20
PDTC144WT
NXP Semiconductors
SOT-23
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=47k/22k
W20
PDTC144WU
NXP Semiconductors
SOT-323
NPN transistor
Sw, 50V, 100mA, 200mW, R1/R2=47k/22k
W20
R1163N201D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.0V±1.5%, 150mA, +CE, CL, AE(Mode)
W20
TK11120M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.0V±1.5%, 200mA, -CE
W20
TK11120S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.0V±1.5%, 200mA, -CE
W21
KIC73B21M2
Korea Electronics
TSM
Voltage detector IC
2.1V±1%, -Reset PPO, Td=50ms
W21
KIC73B21T2
Korea Electronics
SOT-23
Voltage detector IC
2.1V±1%, -Reset PPO, Td=50ms
W21
PDTA123ET
NXP Semiconductors
SOT-23
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/2.2k
W21
R1163N211D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.1V±1.5%, 150mA, +CE, CL, AE(Mode)
W21
SMTPB120
SGS-Thomson Microelectronics
DO-214AB
Transient voltage supressor
Vrwm=120V, 100A, 5W(1ms), Bidirectional
W21
TK11121M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.1V±1.5%, 200mA, -CE
W21
TK11121S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.1V±1.5%, 200mA, -CE
W22
KIC73B22M2
Korea Electronics
TSM
Voltage detector IC
2.2V±1%, -Reset PPO, Td=50ms
W22
KIC73B22T2
Korea Electronics
SOT-23
Voltage detector IC
2.2V±1%, -Reset PPO, Td=50ms
W22
R1163N221D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.2V±1.5%, 150mA, +CE, CL, AE(Mode)
W22
S822TRW
Vishay Semiconductor
SOT-343R
NPN transistor
UHF, LN, 12V, 8mA, 30mW, B=40..150, 5.2GHz
W22
TK11122S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.3V±1.5%, 200mA, -CE
W23
KIC73B23M2
Korea Electronics
TSM
Voltage detector IC
2.3V±1%, -Reset PPO, Td=50ms
W23
KIC73B23T2
Korea Electronics
SOT-23
Voltage detector IC
2.3V±1%, -Reset PPO, Td=50ms
W23
PDTA114TU
NXP Semiconductors
SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1=10k
W23
PDTA123JT
NXP Semiconductors
SOT-23
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k
W23
R1163N231D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.3V±1.5%, 150mA, +CE, CL, AE(Mode)
W23
SMTPB130
SGS-Thomson Microelectronics
DO-214AB
Transient voltage supressor
Vrwm=130V, 100A, 5W(1ms), Bidirectional
W23
TK11123M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.3V±1.5%, 200mA, -CE
W23
TK11123S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.3V±1.5%, 200mA, -CE
W24
KIC73B24M2
Korea Electronics
TSM
Voltage detector IC
2.4V±1%, -Reset PPO, Td=50ms
W24
KIC73B24T2
Korea Electronics
SOT-23
Voltage detector IC
2.4V±1%, -Reset PPO, Td=50ms
W24
PDTC114TU
NXP Semiconductors
SOT-323
NPN transistor
Sw, 50V, 100mA, 200mW, R1=10k
W24
R1163N241D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.4V±1.5%, 150mA, +CE, CL, AE(Mode)
W24
TK11124M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.4V±1.5%, 200mA, -CE
W24
TK11124S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.4V±1.5%, 200mA, -CE
W25
KIC73B25M2
Korea Electronics
TSM
Voltage detector IC
2.5V±1%, -Reset PPO, Td=50ms
W25
KIC73B25T2
Korea Electronics
SOT-23
Voltage detector IC
2.5V±1%, -Reset PPO, Td=50ms
W25
R1163N251D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.5V±1.5%, 150mA, +CE, CL, AE(Mode)
W25
TK11125M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.5V±1.5%, 200mA, -CE
W25
TK11125S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.5V±1.5%, 200mA, -CE
W26
KIC73B26M2
Korea Electronics
TSM
Voltage detector IC
2.6V±1%, -Reset PPO, Td=50ms
W26
KIC73B26T2
Korea Electronics
SOT-23
Voltage detector IC
2.6V±1%, -Reset PPO, Td=50ms
W26
PDTC123ET
NXP Semiconductors
SOT-23
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/2.2k
W26
PDTC123JT
NXP Semiconductors
SOT-23
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k
W26
R1163N261D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.6V±1.5%, 150mA, +CE, CL, AE(Mode)
W26
TK11126M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.6V±1.5%, 200mA, -CE
W26
TK11126S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.6V±1.5%, 200mA, -CE
W27
KIC73B27M2
Korea Electronics
TSM
Voltage detector IC
2.7V±1%, -Reset PPO, Td=50ms
W27
KIC73B27T2
Korea Electronics
SOT-23
Voltage detector IC
2.7V±1%, -Reset PPO, Td=50ms
W27
PDTC114YT
NXP Semiconductors
SOT-23
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/47k
W27
R1163N271D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.7V±1.5%, 150mA, +CE, CL, AE(Mode)
W27
TK11127M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.7V±1.5%, 200mA, -CE
W27
TK11127S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.7V±1.5%, 200mA, -CE
W28
BFP280TRW
Vishay Semiconductor
SOT-343
NPN transistor
UHF, 10V, 10mA, 80mW, B=30..200, 7GHz
W28
BFP280TW
Vishay Semiconductor
SOT-343
NPN transistor
VHF/UHF, LN, 15V, 10mA, 80mW, B=50..150, 5GHz
W28
KIC73B28M2
Korea Electronics
TSM
Voltage detector IC
2.8V±1%, -Reset PPO, Td=50ms
W28
KIC73B28T2
Korea Electronics
SOT-23
Voltage detector IC
2.8V±1%, -Reset PPO, Td=50ms
W28
MIC5255-2.8BML
Micrel
MLF-6
Linear voltage regulator IC
LDO, 2.8V±1%, 150mA, +CE
W28
MIC5255-2.8YML
Micrel
MLF-6
Linear voltage regulator IC
LDO, 2.8V±1%, 150mA, +CE, Pb-free
W28
PDTA144WU
NXP Semiconductors
SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=47k/22k
W28
R1163N281D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.8V±1.5%, 150mA, +CE, CL, AE(Mode)
W28
TK11128M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.8V±1.5%, 200mA, -CE
W28
TK11128S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.8V±1.5%, 200mA, -CE
W29
KIC73B29M2
Korea Electronics
TSM
Voltage detector IC
2.9V±1%, -Reset PPO, Td=50ms
W29
KIC73B29T2
Korea Electronics
SOT-23
Voltage detector IC
2.9V±1%, -Reset PPO, Td=50ms
W29
PDTA114YT
NXP Semiconductors
SOT-23
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/47k
W29
R1163N291D
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 2.9V±1.5%, 150mA, +CE, CL, AE(Mode)
W29
SMTPB180
SGS-Thomson Microelectronics
DO-214AB
Transient voltage supressor
Vrwm=180V, 100A, 5W(1ms), Bidirectional
W29
TK11129M
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 2.9V±1.5%, 200mA, -CE
W29
TK11129S
Toko America
SOT-23-5
Linear voltage regulator IC
LDO, 2.9V±1.5%, 200mA, -CE
W2A
PMBT3906
Philips
SOT-23
PNP transistor
Sw, 40V, 100mA, 250mW, B=100..300, >250MHz
W2A
PMST3906
Philips
SOT-323
PNP transistor
GP, 60V, 100mA, 200mW, B=60..300, >250MHz
W2B
PMBT2907
Philips
SOT-23
PNP transistor
GP, 40V, 600mA, 330mW, B=100..300, >200MHz
W2D
PMBTA92
Philips
SOT-23
PNP transistor
Vid, 300/300V, 500mA, 250mW, B=25, >50MHz
W2D
PMSTA92
Philips
SOT-323
PNP transistor
Vid, 300/300V, 500mA, 200mW, B=25, >50MHz
W2E
PMBTA93
Philips
SOT-23
PNP transistor
Vid, 200/200V, 500mA, 250mW, B=25, >50MHz
W2E
PMSTA93
Philips
SOT-323
PNP transistor
Vid, 200/200V, 500mA, 330mW, B=25, >50MHz
W2F
KIC73B263M2
Korea Electronics
TSM
Voltage detector IC
2.63V±1%, -Reset PPO, Td=50ms
W2F
KIC73B263T2
Korea Electronics
SOT-23
Voltage detector IC
2.63V±1%, -Reset PPO, Td=50ms
W2F
PMBT2907A
Philips
SOT-23
PNP transistor
GP, 60V, 600mA, 330mW, B=100..300, >200MHz
W2F
PMST2907A
Philips
SOT-323
PNP transistor
GP, 60V, 600mA, 330mW, B=100..300, >200MHz
W2G
PMBTA56
Philips
SOT-23
PNP transistor
AF-Drv, 80V, 500mA, 250mW, B>100, >50MHz
W2G
PMSTA56
Philips
SOT-323
PNP transistor
AF-Drv, 80V, 500mA, 200mW, B>100, >50MHz
W2H
PMBTA55
Philips
SOT-23
PNP transistor
AF-Drv, 60V, 500mA, 250mW, B>100, >50MHz
W2H
PMSTA55
Philips
SOT-323
PNP transistor
AF-Drv, 60V, 500mA, 200mW, B>100, >50MHz
W2I
KIC73B293M2
Korea Electronics
TSM
Voltage detector IC
2.93V±1%, -Reset PPO, Td=50ms
W2I
KIC73B293T2
Korea Electronics
SOT-23
Voltage detector IC
2.93V±1%, -Reset PPO, Td=50ms
W2J
MIC5255-2.85BML
Micrel
MLF-6
Linear voltage regulator IC
LDO, 2.85V±1%, 150mA, +CE
W2J
MIC5255-2.85YML
Micrel
MLF-6
Linear voltage regulator IC
LDO, 2.85V±1%, 150mA, +CE, Pb-free
W2L
PMBT5401
Philips
SOT-23
PNP transistor
HV, 160V, 300mA, 250mW, B=60..240, 100..300MHz
W2L
PMST5401
Philips
SOT-323
PNP transistor
HV, 160V, 300mA, 200mW, B=60..240, 100..300MHz
W2s
BCR189
Infineon Technologies
SOT-23
PNP transistor
Sw, 50V, 100mA, 200mW, R1=22k, 200MHz
W2s
BCR189F
Infineon Technologies
TSFP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1=22k, 150MHz
W2s
BCR189T
Infineon Technologies
SOT-416
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k, 150MHz
W2T
PMBT4403
Philips
SOT-23
PNP transistor
Sw, 40V, 600mA, 250mW, B=100..300, >250MHz
W2T
PMST4403
Philips
SOT-323
PNP transistor
GP, 40V, 600mA, 200mW, B=100..300, >200MHz
W2U
PMBTA63
Philips
SOT-23
PNP darlington
GP, 30V, 500mA, 250mW, B>5000, >125MHz
W2V
PMBTA64
Philips
SOT-23
PNP darlington
GP, 30V, 500mA, 250mW, B>10000, >125MHz
W2X
PMBT4401
Philips
SOT-23
NPN transistor
Sw, 60V, 600mA, 250mW, B=100..300, >250MHz
W2X
PMST4401
Philips
SOT-323
NPN transistor
Sw, 60V, 600mA, 200mW, B=100..300, >250MHz